diff --git a/src/registrar/tests/test_url_auth.py b/src/registrar/tests/test_url_auth.py
index 7e0193e1d..8b0cec83e 100644
--- a/src/registrar/tests/test_url_auth.py
+++ b/src/registrar/tests/test_url_auth.py
@@ -29,6 +29,8 @@ SAMPLE_KWARGS = {
     "user_pk": "1",
     "portfolio_id": "1",
     "user_id": "1",
+    "member_pk": "1",
+    "invitedmember_pk": "1"
 }
 
 # Our test suite will ignore some namespaces.
diff --git a/src/registrar/tests/test_views_portfolio.py b/src/registrar/tests/test_views_portfolio.py
index 64bcb50a8..1c6ae5001 100644
--- a/src/registrar/tests/test_views_portfolio.py
+++ b/src/registrar/tests/test_views_portfolio.py
@@ -867,7 +867,7 @@ class TestPortfolio(WebTest):
 
         # Verify that the user cannot access the member page
         self.client.force_login(self.user)
-        response = self.client.get(reverse("member", kwargs={"pk": 1}), follow=True)
+        response = self.client.get(reverse("member", kwargs={"member_pk": 1}), follow=True)
         # Make sure the page is denied
         self.assertEqual(response.status_code, 403)
 
@@ -886,7 +886,7 @@ class TestPortfolio(WebTest):
 
         # Verify that the user cannot access the member page
         self.client.force_login(self.user)
-        response = self.client.get(reverse("member", kwargs={"pk": 1}), follow=True)
+        response = self.client.get(reverse("member", kwargs={"member_pk": 1}), follow=True)
         # Make sure the page is denied
         self.assertEqual(response.status_code, 403)
 
@@ -909,7 +909,7 @@ class TestPortfolio(WebTest):
 
         # Verify the page can be accessed
         self.client.force_login(self.user)
-        response = self.client.get(reverse("member", kwargs={"pk": permission_obj.pk}), follow=True)
+        response = self.client.get(reverse("member", kwargs={"member_pk": permission_obj.pk}), follow=True)
         self.assertEqual(response.status_code, 200)
 
         # Assert text within the page is correct
@@ -942,7 +942,7 @@ class TestPortfolio(WebTest):
 
         # Verify the page can be accessed
         self.client.force_login(self.user)
-        response = self.client.get(reverse("member", kwargs={"pk": permission_obj.pk}), follow=True)
+        response = self.client.get(reverse("member", kwargs={"member_pk": permission_obj.pk}), follow=True)
         self.assertEqual(response.status_code, 200)
 
         # Assert text within the page is correct
@@ -966,7 +966,7 @@ class TestPortfolio(WebTest):
 
         # Verify that the user cannot access the member page
         self.client.force_login(self.user)
-        response = self.client.get(reverse("invitedmember", kwargs={"pk": 1}), follow=True)
+        response = self.client.get(reverse("invitedmember", kwargs={"invitedmember_pk": 1}), follow=True)
         # Make sure the page is denied
         self.assertEqual(response.status_code, 403)
 
@@ -985,7 +985,7 @@ class TestPortfolio(WebTest):
 
         # Verify that the user cannot access the member page
         self.client.force_login(self.user)
-        response = self.client.get(reverse("invitedmember", kwargs={"pk": 1}), follow=True)
+        response = self.client.get(reverse("invitedmember", kwargs={"invitedmember_pk": 1}), follow=True)
         # Make sure the page is denied
         self.assertEqual(response.status_code, 403)
 
@@ -1016,7 +1016,7 @@ class TestPortfolio(WebTest):
 
         # Verify the page can be accessed
         self.client.force_login(self.user)
-        response = self.client.get(reverse("invitedmember", kwargs={"pk": portfolio_invitation.pk}), follow=True)
+        response = self.client.get(reverse("invitedmember", kwargs={"invitedmember_pk": portfolio_invitation.pk}), follow=True)
         self.assertEqual(response.status_code, 200)
 
         # Assert text within the page is correct
@@ -1054,7 +1054,7 @@ class TestPortfolio(WebTest):
 
         # Verify the page can be accessed
         self.client.force_login(self.user)
-        response = self.client.get(reverse("invitedmember", kwargs={"pk": portfolio_invitation.pk}), follow=True)
+        response = self.client.get(reverse("invitedmember", kwargs={"invitedmember_pk": portfolio_invitation.pk}), follow=True)
         self.assertEqual(response.status_code, 200)
 
         # Assert text within the page is correct
@@ -1697,7 +1697,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             self.client.force_login(self.user)
             # We check X_REQUESTED_WITH bc those return JSON responses
             response = self.client.post(
-                reverse("member-delete", kwargs={"pk": upp.pk}), HTTP_X_REQUESTED_WITH="XMLHttpRequest"
+                reverse("member-delete", kwargs={"member_pk": upp.pk}), HTTP_X_REQUESTED_WITH="XMLHttpRequest"
             )
 
             self.assertEqual(response.status_code, 400)  # Bad request due to active requests
@@ -1738,7 +1738,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             self.client.force_login(self.user)
             # We check X_REQUESTED_WITH bc those return JSON responses
             response = self.client.post(
-                reverse("member-delete", kwargs={"pk": admin_perm_user.pk}), HTTP_X_REQUESTED_WITH="XMLHttpRequest"
+                reverse("member-delete", kwargs={"member_pk": admin_perm_user.pk}), HTTP_X_REQUESTED_WITH="XMLHttpRequest"
             )
 
             self.assertEqual(response.status_code, 400)
@@ -1795,7 +1795,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             self.client.force_login(self.user)
             response = self.client.post(
                 # We check X_REQUESTED_WITH bc those return JSON responses
-                reverse("member-delete", kwargs={"pk": upp.pk}),
+                reverse("member-delete", kwargs={"member_pk": upp.pk}),
                 HTTP_X_REQUESTED_WITH="XMLHttpRequest",
             )
 
@@ -1862,7 +1862,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             self.client.force_login(self.user)
             response = self.client.post(
                 # We check X_REQUESTED_WITH bc those return JSON responses
-                reverse("member-delete", kwargs={"pk": upp.pk}),
+                reverse("member-delete", kwargs={"member_pk": upp.pk}),
                 HTTP_X_REQUESTED_WITH="XMLHttpRequest",
             )
 
@@ -1939,7 +1939,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             self.client.force_login(self.user)
             response = self.client.post(
                 # We check X_REQUESTED_WITH bc those return JSON responses
-                reverse("member-delete", kwargs={"pk": upp.pk}),
+                reverse("member-delete", kwargs={"member_pk": upp.pk}),
                 HTTP_X_REQUESTED_WITH="XMLHttpRequest",
             )
 
@@ -2000,7 +2000,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             with patch("django.contrib.messages.error") as mock_error:
                 self.client.force_login(self.user)
                 response = self.client.post(
-                    reverse("member-delete", kwargs={"pk": upp.pk}),
+                    reverse("member-delete", kwargs={"member_pk": upp.pk}),
                 )
                 # We don't want to do follow=True in response bc that does automatic redirection
 
@@ -2023,7 +2023,7 @@ class TestPortfolioMemberDeleteView(WebTest):
 
                 # Location is used for a 3xx HTTP status code to indicate that the URL was redirected
                 # and then confirm that we're still on the Manage Members page
-                self.assertEqual(response.headers["Location"], reverse("member", kwargs={"pk": upp.pk}))
+                self.assertEqual(response.headers["Location"], reverse("member", kwargs={"member_pk": upp.pk}))
 
     @less_console_noise_decorator
     @override_flag("organization_feature", active=True)
@@ -2047,7 +2047,7 @@ class TestPortfolioMemberDeleteView(WebTest):
             with patch("django.contrib.messages.error") as mock_error:
                 self.client.force_login(self.user)
                 response = self.client.post(
-                    reverse("member-delete", kwargs={"pk": admin_perm_user.pk}),
+                    reverse("member-delete", kwargs={"member_pk": admin_perm_user.pk}),
                 )
 
                 self.assertEqual(response.status_code, 302)
@@ -2066,7 +2066,7 @@ class TestPortfolioMemberDeleteView(WebTest):
 
                 # Location is used for a 3xx HTTP status code to indicate that the URL was redirected
                 # and then confirm that we're still on the Manage Members page
-                self.assertEqual(response.headers["Location"], reverse("member", kwargs={"pk": admin_perm_user.pk}))
+                self.assertEqual(response.headers["Location"], reverse("member", kwargs={"member_pk": admin_perm_user.pk}))
 
 
 class TestPortfolioInvitedMemberDeleteView(WebTest):
@@ -2125,7 +2125,7 @@ class TestPortfolioInvitedMemberDeleteView(WebTest):
         with patch("django.contrib.messages.success") as mock_success:
             self.client.force_login(self.user)
             response = self.client.post(
-                reverse("invitedmember-delete", kwargs={"pk": invitation.pk}),
+                reverse("invitedmember-delete", kwargs={"member_pk": invitation.pk}),
             )
 
             self.assertEqual(response.status_code, 302)
@@ -2190,7 +2190,7 @@ class TestPortfolioInvitedMemberDeleteView(WebTest):
         with patch("django.contrib.messages.success") as mock_success:
             self.client.force_login(self.user)
             response = self.client.post(
-                reverse("invitedmember-delete", kwargs={"pk": invitation.pk}),
+                reverse("invitedmember-delete", kwargs={"member_pk": invitation.pk}),
             )
 
             self.assertEqual(response.status_code, 302)
@@ -2263,7 +2263,7 @@ class TestPortfolioInvitedMemberDeleteView(WebTest):
         with patch("django.contrib.messages.success") as mock_success:
             self.client.force_login(self.user)
             response = self.client.post(
-                reverse("invitedmember-delete", kwargs={"pk": invitation.pk}),
+                reverse("invitedmember-delete", kwargs={"member_pk": invitation.pk}),
             )
 
             self.assertEqual(response.status_code, 302)
@@ -2365,7 +2365,7 @@ class TestPortfolioMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio member domains view is accessible."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("member-domains", kwargs={"pk": self.permission.id}))
+        response = self.client.get(reverse("member-domains", kwargs={"member_pk": self.permission.id}))
 
         # Make sure the page loaded, and that we're on the right page
         self.assertEqual(response.status_code, 200)
@@ -2378,7 +2378,7 @@ class TestPortfolioMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio member domains view is not accessible to user with no perms."""
         self.client.force_login(self.user_no_perms)
 
-        response = self.client.get(reverse("member-domains", kwargs={"pk": self.permission.id}))
+        response = self.client.get(reverse("member-domains", kwargs={"member_pk": self.permission.id}))
 
         # Make sure the request returns forbidden
         self.assertEqual(response.status_code, 403)
@@ -2390,7 +2390,7 @@ class TestPortfolioMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio member domains view is not accessible when no authenticated user."""
         self.client.logout()
 
-        response = self.client.get(reverse("member-domains", kwargs={"pk": self.permission.id}))
+        response = self.client.get(reverse("member-domains", kwargs={"member_pk": self.permission.id}))
 
         # Make sure the request returns redirect to openid login
         self.assertEqual(response.status_code, 302)  # Redirect to openid login
@@ -2403,7 +2403,7 @@ class TestPortfolioMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio member domains view returns not found if user portfolio permission not found."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("member-domains", kwargs={"pk": "0"}))
+        response = self.client.get(reverse("member-domains", kwargs={"member_pk": "0"}))
 
         # Make sure the response is not found
         self.assertEqual(response.status_code, 404)
@@ -2463,7 +2463,7 @@ class TestPortfolioInvitedMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains view is accessible."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("invitedmember-domains", kwargs={"pk": self.invitation.id}))
+        response = self.client.get(reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.id}))
 
         # Make sure the page loaded, and that we're on the right page
         self.assertEqual(response.status_code, 200)
@@ -2476,7 +2476,7 @@ class TestPortfolioInvitedMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains view is not accessible to user with no perms."""
         self.client.force_login(self.user_no_perms)
 
-        response = self.client.get(reverse("invitedmember-domains", kwargs={"pk": self.invitation.id}))
+        response = self.client.get(reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.id}))
 
         # Make sure the request returns forbidden
         self.assertEqual(response.status_code, 403)
@@ -2488,7 +2488,7 @@ class TestPortfolioInvitedMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains view is not accessible when no authenticated user."""
         self.client.logout()
 
-        response = self.client.get(reverse("invitedmember-domains", kwargs={"pk": self.invitation.id}))
+        response = self.client.get(reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.id}))
 
         # Make sure the request returns redirect to openid login
         self.assertEqual(response.status_code, 302)  # Redirect to openid login
@@ -2501,7 +2501,7 @@ class TestPortfolioInvitedMemberDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains view returns not found if user is not a member."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("invitedmember-domains", kwargs={"pk": "0"}))
+        response = self.client.get(reverse("invitedmember-domains", kwargs={"member_pk": "0"}))
 
         # Make sure the response is not found
         self.assertEqual(response.status_code, 404)
@@ -2566,7 +2566,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
             ],
         )
         # Create url to be used in all tests
-        self.url = reverse("member-domains-edit", kwargs={"pk": self.portfolio_permission.pk})
+        self.url = reverse("member-domains-edit", kwargs={"member_pk": self.portfolio_permission.pk})
 
     def tearDown(self):
         super().tearDown()
@@ -2584,7 +2584,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         """Tests that the portfolio member domains edit view is accessible."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("member-domains-edit", kwargs={"pk": self.permission.id}))
+        response = self.client.get(reverse("member-domains-edit", kwargs={"member_pk": self.permission.id}))
 
         # Make sure the page loaded, and that we're on the right page
         self.assertEqual(response.status_code, 200)
@@ -2597,7 +2597,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         """Tests that the portfolio member domains edit view is not accessible to user with no perms."""
         self.client.force_login(self.user_no_perms)
 
-        response = self.client.get(reverse("member-domains-edit", kwargs={"pk": self.permission.id}))
+        response = self.client.get(reverse("member-domains-edit", kwargs={"member_pk": self.permission.id}))
 
         # Make sure the request returns forbidden
         self.assertEqual(response.status_code, 403)
@@ -2609,7 +2609,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         """Tests that the portfolio member domains edit view is not accessible when no authenticated user."""
         self.client.logout()
 
-        response = self.client.get(reverse("member-domains-edit", kwargs={"pk": self.permission.id}))
+        response = self.client.get(reverse("member-domains-edit", kwargs={"member_pk": self.permission.id}))
 
         # Make sure the request returns redirect to openid login
         self.assertEqual(response.status_code, 302)  # Redirect to openid login
@@ -2623,7 +2623,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         portfolio permission not found."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("member-domains-edit", kwargs={"pk": "0"}))
+        response = self.client.get(reverse("member-domains-edit", kwargs={"member_pk": "0"}))
 
         # Make sure the response is not found
         self.assertEqual(response.status_code, 404)
@@ -2645,7 +2645,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         self.assertEqual(UserDomainRole.objects.filter(user=self.user, role=UserDomainRole.Roles.MANAGER).count(), 3)
 
         # Check for a success message and a redirect
-        self.assertRedirects(response, reverse("member-domains", kwargs={"pk": self.portfolio_permission.pk}))
+        self.assertRedirects(response, reverse("member-domains", kwargs={"member_pk": self.portfolio_permission.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(str(messages[0]), "The domain assignment changes have been saved.")
@@ -2681,7 +2681,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         self.assertEqual(UserDomainRole.objects.filter(domain=self.domain3, user=self.user).count(), 1)
 
         # Check for a success message and a redirect
-        self.assertRedirects(response, reverse("member-domains", kwargs={"pk": self.portfolio_permission.pk}))
+        self.assertRedirects(response, reverse("member-domains", kwargs={"member_pk": self.portfolio_permission.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(str(messages[0]), "The domain assignment changes have been saved.")
@@ -2706,7 +2706,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         self.assertEqual(UserDomainRole.objects.filter(user=self.user).count(), 0)
 
         # Check for an error message and a redirect
-        self.assertRedirects(response, reverse("member-domains", kwargs={"pk": self.portfolio_permission.pk}))
+        self.assertRedirects(response, reverse("member-domains", kwargs={"member_pk": self.portfolio_permission.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(
@@ -2729,7 +2729,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         self.assertEqual(UserDomainRole.objects.filter(user=self.user).count(), 0)
 
         # Check for an error message and a redirect
-        self.assertRedirects(response, reverse("member-domains", kwargs={"pk": self.portfolio_permission.pk}))
+        self.assertRedirects(response, reverse("member-domains", kwargs={"member_pk": self.portfolio_permission.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(
@@ -2749,7 +2749,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         self.assertEqual(UserDomainRole.objects.filter(user=self.user).count(), 0)
 
         # Check for an info message and a redirect
-        self.assertRedirects(response, reverse("member-domains", kwargs={"pk": self.portfolio_permission.pk}))
+        self.assertRedirects(response, reverse("member-domains", kwargs={"member_pk": self.portfolio_permission.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(str(messages[0]), "The domain assignment changes have been saved.")
@@ -2772,7 +2772,7 @@ class TestPortfolioMemberDomainsEditView(TestWithUser, WebTest):
         self.assertEqual(UserDomainRole.objects.filter(user=self.user, role=UserDomainRole.Roles.MANAGER).count(), 0)
 
         # Check for an error message and a redirect to edit form
-        self.assertRedirects(response, reverse("member-domains-edit", kwargs={"pk": self.portfolio_permission.pk}))
+        self.assertRedirects(response, reverse("member-domains-edit", kwargs={"member_pk": self.portfolio_permission.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(
@@ -2831,7 +2831,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
                 UserPortfolioPermissionChoices.EDIT_MEMBERS,
             ],
         )
-        self.url = reverse("invitedmember-domains-edit", kwargs={"pk": self.invitation.pk})
+        self.url = reverse("invitedmember-domains-edit", kwargs={"member_pk": self.invitation.pk})
 
     def tearDown(self):
         super().tearDown()
@@ -2849,7 +2849,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains edit view is accessible."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"pk": self.invitation.id}))
+        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"member_pk": self.invitation.id}))
 
         # Make sure the page loaded, and that we're on the right page
         self.assertEqual(response.status_code, 200)
@@ -2862,7 +2862,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains edit view is not accessible to user with no perms."""
         self.client.force_login(self.user_no_perms)
 
-        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"pk": self.invitation.id}))
+        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"member_pk": self.invitation.id}))
 
         # Make sure the request returns forbidden
         self.assertEqual(response.status_code, 403)
@@ -2874,7 +2874,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains edit view is not accessible when no authenticated user."""
         self.client.logout()
 
-        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"pk": self.invitation.id}))
+        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"member_pk": self.invitation.id}))
 
         # Make sure the request returns redirect to openid login
         self.assertEqual(response.status_code, 302)  # Redirect to openid login
@@ -2887,7 +2887,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         """Tests that the portfolio invited member domains edit view returns not found if user is not a member."""
         self.client.force_login(self.user)
 
-        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"pk": "0"}))
+        response = self.client.get(reverse("invitedmember-domains-edit", kwargs={"member_pk": "0"}))
 
         # Make sure the response is not found
         self.assertEqual(response.status_code, 404)
@@ -2914,7 +2914,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         )
 
         # Check for a success message and a redirect
-        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(str(messages[0]), "The domain assignment changes have been saved.")
@@ -2971,7 +2971,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         )
 
         # Check for a success message and a redirect
-        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.pk}))
 
     @less_console_noise_decorator
     @override_flag("organization_feature", active=True)
@@ -3015,7 +3015,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         )
 
         # Check for a success message and a redirect
-        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.pk}))
         # assert that send_domain_invitation_email is not called
         mock_send_domain_email.assert_not_called()
 
@@ -3035,7 +3035,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         self.assertEqual(DomainInvitation.objects.count(), 0)
 
         # Check for an error message and a redirect
-        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(
@@ -3058,7 +3058,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         self.assertEqual(DomainInvitation.objects.count(), 0)
 
         # Check for an error message and a redirect
-        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(
@@ -3078,7 +3078,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         self.assertEqual(DomainInvitation.objects.count(), 0)
 
         # Check for an info message and a redirect
-        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains", kwargs={"member_pk": self.invitation.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(str(messages[0]), "The domain assignment changes have been saved.")
@@ -3106,7 +3106,7 @@ class TestPortfolioInvitedMemberEditDomainsView(TestWithUser, WebTest):
         )
 
         # Check for an error message and a redirect to edit form
-        self.assertRedirects(response, reverse("invitedmember-domains-edit", kwargs={"pk": self.invitation.pk}))
+        self.assertRedirects(response, reverse("invitedmember-domains-edit", kwargs={"member_pk": self.invitation.pk}))
         messages = list(response.wsgi_request._messages)
         self.assertEqual(len(messages), 1)
         self.assertEqual(
@@ -4089,7 +4089,7 @@ class TestPortfolioMemberEditView(WebTest):
         mock_send_update_email.return_value = True
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": basic_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": basic_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_ADMIN,
             },
@@ -4152,7 +4152,7 @@ class TestPortfolioMemberEditView(WebTest):
         mock_send_update_email.return_value = False
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": basic_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": basic_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_ADMIN,
             },
@@ -4219,7 +4219,7 @@ class TestPortfolioMemberEditView(WebTest):
         )
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": admin_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": admin_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_ADMIN,
             },
@@ -4257,7 +4257,7 @@ class TestPortfolioMemberEditView(WebTest):
         mock_send_update_email.return_value = True
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": basic_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": basic_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4306,7 +4306,7 @@ class TestPortfolioMemberEditView(WebTest):
         mock_send_update_email.return_value = True
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": admin_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": admin_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4369,7 +4369,7 @@ class TestPortfolioMemberEditView(WebTest):
         mock_send_update_email.return_value = False
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": admin_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": admin_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4429,7 +4429,7 @@ class TestPortfolioMemberEditView(WebTest):
 
         # Test missing required admin permissions
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 # Missing required admin fields
@@ -4461,7 +4461,7 @@ class TestPortfolioMemberEditView(WebTest):
         admin_permission = UserPortfolioPermission.objects.get(user=self.user, portfolio=self.portfolio)
 
         response = self.client.post(
-            reverse("member-permissions", kwargs={"pk": admin_permission.id}),
+            reverse("member-permissions", kwargs={"member_pk": admin_permission.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4534,7 +4534,7 @@ class TestPortfolioInvitedMemberEditView(WebTest):
 
         # Test updating invitation permissions
         response = self.client.post(
-            reverse("invitedmember-permissions", kwargs={"pk": self.invitation.id}),
+            reverse("invitedmember-permissions", kwargs={"member_pk": self.invitation.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_ADMIN,
             },
@@ -4577,7 +4577,7 @@ class TestPortfolioInvitedMemberEditView(WebTest):
 
         # Test updating invitation permissions
         response = self.client.post(
-            reverse("invitedmember-permissions", kwargs={"pk": self.invitation.id}),
+            reverse("invitedmember-permissions", kwargs={"member_pk": self.invitation.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_ADMIN,
             },
@@ -4623,7 +4623,7 @@ class TestPortfolioInvitedMemberEditView(WebTest):
 
         # Test updating invitation permissions
         response = self.client.post(
-            reverse("invitedmember-permissions", kwargs={"pk": self.admin_invitation.id}),
+            reverse("invitedmember-permissions", kwargs={"member_pk": self.admin_invitation.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4669,7 +4669,7 @@ class TestPortfolioInvitedMemberEditView(WebTest):
 
         # Test updating invitation permissions
         response = self.client.post(
-            reverse("invitedmember-permissions", kwargs={"pk": self.admin_invitation.id}),
+            reverse("invitedmember-permissions", kwargs={"member_pk": self.admin_invitation.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4715,7 +4715,7 @@ class TestPortfolioInvitedMemberEditView(WebTest):
 
         # Test updating invitation permissions
         response = self.client.post(
-            reverse("invitedmember-permissions", kwargs={"pk": self.invitation.id}),
+            reverse("invitedmember-permissions", kwargs={"member_pk": self.invitation.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_MEMBER,
                 "domain_permissions": UserPortfolioPermissionChoices.VIEW_MANAGED_DOMAINS,
@@ -4742,7 +4742,7 @@ class TestPortfolioInvitedMemberEditView(WebTest):
 
         # Test updating invitation permissions
         response = self.client.post(
-            reverse("invitedmember-permissions", kwargs={"pk": self.admin_invitation.id}),
+            reverse("invitedmember-permissions", kwargs={"member_pk": self.admin_invitation.id}),
             {
                 "role": UserPortfolioRoleChoices.ORGANIZATION_ADMIN,
             },
diff --git a/src/registrar/views/portfolios.py b/src/registrar/views/portfolios.py
index d9760ff5a..4321f4c51 100644
--- a/src/registrar/views/portfolios.py
+++ b/src/registrar/views/portfolios.py
@@ -171,7 +171,7 @@ class PortfolioMemberDeleteView(View):
         if request.headers.get("X-Requested-With") == "XMLHttpRequest":
             return JsonResponse({"error": error_message}, status=400)
         messages.error(request, error_message)
-        return redirect(reverse("member", kwargs={"pk": member_pk}))
+        return redirect(reverse("member", kwargs={"member_pk": member_pk}))
 
     def _send_removal_notifications(self, request, portfolio_member_permission):
         """
@@ -356,21 +356,21 @@ class PortfolioMemberDomainsEditView(DetailView, View):
 
         added_domain_ids = self._parse_domain_ids(added_domains, "added domains")
         if added_domain_ids is None:
-            return redirect(reverse("member-domains", kwargs={"pk": member_pk}))
+            return redirect(reverse("member-domains", kwargs={"member_pk": member_pk}))
 
         removed_domain_ids = self._parse_domain_ids(removed_domains, "removed domains")
         if removed_domain_ids is None:
-            return redirect(reverse("member-domains", kwargs={"pk": member_pk}))
+            return redirect(reverse("member-domains", kwargs={"member_pk": member_pk}))
 
         if not (added_domain_ids or removed_domain_ids):
             messages.success(request, "The domain assignment changes have been saved.")
-            return redirect(reverse("member-domains", kwargs={"pk": member_pk}))
+            return redirect(reverse("member-domains", kwargs={"member_pk": member_pk}))
 
         try:
             self._process_added_domains(added_domain_ids, member, request.user, portfolio)
             self._process_removed_domains(removed_domain_ids, member)
             messages.success(request, "The domain assignment changes have been saved.")
-            return redirect(reverse("member-domains", kwargs={"pk": member_pk}))
+            return redirect(reverse("member-domains", kwargs={"member_pk": member_pk}))
         except IntegrityError:
             messages.error(
                 request,
@@ -378,7 +378,7 @@ class PortfolioMemberDomainsEditView(DetailView, View):
                 f"please contact {DefaultUserValues.HELP_EMAIL}.",
             )
             logger.error("A database error occurred while saving changes.", exc_info=True)
-            return redirect(reverse("member-domains-edit", kwargs={"pk": member_pk}))
+            return redirect(reverse("member-domains-edit", kwargs={"member_pk": member_pk}))
         except Exception as e:
             messages.error(
                 request,
@@ -386,7 +386,7 @@ class PortfolioMemberDomainsEditView(DetailView, View):
                 f"please contact {DefaultUserValues.HELP_EMAIL}.",
             )
             logger.error(f"An unexpected error occurred: {str(e)}", exc_info=True)
-            return redirect(reverse("member-domains-edit", kwargs={"pk": member_pk}))
+            return redirect(reverse("member-domains-edit", kwargs={"member_pk": member_pk}))
 
     def _parse_domain_ids(self, domain_data, domain_type):
         """
@@ -650,21 +650,21 @@ class PortfolioInvitedMemberDomainsEditView(DetailView, View):
 
         added_domain_ids = self._parse_domain_ids(added_domains, "added domains")
         if added_domain_ids is None:
-            return redirect(reverse("invitedmember-domains", kwargs={"pk": invitedmember_pk}))
+            return redirect(reverse("invitedmember-domains", kwargs={"invitedmember_pk": invitedmember_pk}))
 
         removed_domain_ids = self._parse_domain_ids(removed_domains, "removed domains")
         if removed_domain_ids is None:
-            return redirect(reverse("invitedmember-domains", kwargs={"pk": invitedmember_pk}))
+            return redirect(reverse("invitedmember-domains", kwargs={"invitedmember_pk": invitedmember_pk}))
 
         if not (added_domain_ids or removed_domain_ids):
             messages.success(request, "The domain assignment changes have been saved.")
-            return redirect(reverse("invitedmember-domains", kwargs={"pk": invitedmember_pk}))
+            return redirect(reverse("invitedmember-domains", kwargs={"invitedmember_pk": invitedmember_pk}))
 
         try:
             self._process_added_domains(added_domain_ids, email, request.user, portfolio)
             self._process_removed_domains(removed_domain_ids, email)
             messages.success(request, "The domain assignment changes have been saved.")
-            return redirect(reverse("invitedmember-domains", kwargs={"pk": invitedmember_pk}))
+            return redirect(reverse("invitedmember-domains", kwargs={"invitedmember_pk": invitedmember_pk}))
         except IntegrityError:
             messages.error(
                 request,
@@ -672,7 +672,7 @@ class PortfolioInvitedMemberDomainsEditView(DetailView, View):
                 f"please contact {DefaultUserValues.HELP_EMAIL}.",
             )
             logger.error("A database error occurred while saving changes.", exc_info=True)
-            return redirect(reverse("invitedmember-domains-edit", kwargs={"pk": invitedmember_pk}))
+            return redirect(reverse("invitedmember-domains-edit", kwargs={"invitedmember_pk": invitedmember_pk}))
         except Exception as e:
             messages.error(
                 request,
@@ -680,7 +680,7 @@ class PortfolioInvitedMemberDomainsEditView(DetailView, View):
                 f"please contact {DefaultUserValues.HELP_EMAIL}.",
             )
             logger.error(f"An unexpected error occurred: {str(e)}.", exc_info=True)
-            return redirect(reverse("invitedmember-domains-edit", kwargs={"pk": invitedmember_pk}))
+            return redirect(reverse("invitedmember-domains-edit", kwargs={"invitedmember_pk": invitedmember_pk}))
 
     def _parse_domain_ids(self, domain_data, domain_type):
         """