diff --git a/.github/scripts/GitHub.py b/.github/scripts/GitHub.py
index bc0f355206..5db2060ca9 100644
--- a/.github/scripts/GitHub.py
+++ b/.github/scripts/GitHub.py
@@ -221,16 +221,29 @@ def add_reviewers_to_pr(
             f"::error title=User is not a Collaborator!::{', '.join(non_collaborators)}"
             )
 
+        repo_admins = [
+            a.login for a in repo_gh.get_collaborators(permission="admin")
+        ]
+
         leave_pr_comment(
             token,
             owner,
             repo,
             pr_number,
-            f"⚠ **WARNING: Cannot add reviewers**: A user specified as a "
-            f"reviewer for this PR is not a collaborator "
-            f"of the edk2 repository. Please add them as a collaborator to the "
-            f"repository and re-request the review.\n\n"
-            f"Users requested:\n{', '.join(user_names)}",
+            f"⚠ **WARNING: Cannot add some reviewers**: A user  "
+            f"specified as a reviewer for this PR is not a collaborator "
+            f"of the repository. Please add them as a collaborator to "
+            f"the repository so they can be requested in the future.\n\n"
+            f"Non-collaborators requested:\n"
+            f"{'\n'.join([f'- @{c}' for c in non_collaborators])}"
+            f"\n\nAttn Admins:\n"
+            f"{'\n'.join([f'- @{a}' for a in repo_admins])}\n---\n"
+            f"**Admin Instructions:**\n"
+            f"- Add the non-collaborators as collaborators to the "
+            f"appropriate team(s) listed in "
+            f"[teams](https://github.com/orgs/tianocore/teams)\n"
+            f"- If they are no longer needed as reviewers, remove them "
+            f"from [`Maintainers.txt`](https://github.com/tianocore/edk2/blob/HEAD/Maintainers.txt)",
         )
 
     # Add any new reviewers to the PR if needed.