diff --git a/ariadne/services/comms.py b/ariadne/services/comms.py
index 9608507..fcad2dc 100644
--- a/ariadne/services/comms.py
+++ b/ariadne/services/comms.py
@@ -664,8 +664,21 @@ class CommsService:
 
         with self._client() as client:
             token = self._login(client, settings.comms_seeder_user, settings.comms_seeder_password)
-            self._ensure_user(client, token, settings.comms_seeder_user, settings.comms_seeder_password, True)
-            self._ensure_user(client, token, settings.comms_bot_user, settings.comms_bot_password, False)
+            for user, password, admin in (
+                (settings.comms_seeder_user, settings.comms_seeder_password, True),
+                (settings.comms_bot_user, settings.comms_bot_password, False),
+            ):
+                try:
+                    self._ensure_user(client, token, user, password, admin)
+                except RuntimeError as exc:
+                    message = str(exc)
+                    if "You are not a server admin" in message:
+                        logger.warning(
+                            "comms seed room ensure skipped",
+                            extra={"event": "comms_seed_room", "user": user, "detail": message},
+                        )
+                        continue
+                    raise
             room_id = self._ensure_room(client, token)
             self._join_user(client, token, room_id, _canon_user(settings.comms_bot_user, settings.comms_server_name))
             self._join_all_locals(client, token, room_id)