We've begun leveraging the "ExternalID" field in Polaris to integrate staff authentication with Google using our Google Workspace email addresses. During this process, we've encountered matching errors when updating existing Polaris accounts that share email addresses with previously deleted user accounts.

It would be extremely helpful if, when a Polaris staff account is deleted, the associated ExternalID is automatically cleared to prevent these conflicts. Additionally, when an error does occur due to a duplicate ExternalID, a clearer error dialog that identifies the conflicting PolarisUserID would greatly assist in resolving the issue quickly.