Outlook Calendar Sync Error

[clayton.gable]

Looking for advice on how to deal with an outlook calendar sync error we are having.

"ERROR: Outlook Calendar Sync: Access Checker is not implemented for 'CProposal'"

CProposal was a custom entity we made, but did nothing with. Upon seeing this error in the log I deleted the CProposal entity, but this error is persisting. I tried checking every meeting/call/task to see if there were any lingering relationships to CProposal in those entities; but found nothing.

Any advice on how to troubleshoot further?

[victor]

This error can be ignored if the CProposal entity is deleted via the UI.

The trace of this entity could be left in Administration > Users > User_name > External Accounts > Outlook > Outlook Calendar > Sync Entities and Identification Labels or in Administration > Users > User_name > External Accounts > Outlook > Outlook Calendar > Default Entity.

Delete the table in phpMyAdmin. After deleting in the UI, the table still remains in the database.
It is advisable to make a backup before any manipulations with the database.