Forum Discussion
Warning - validation error
Hello,
For a while now I have been getting a warning every time I open a distribution group or mail-enabled security group in the on-prem admin center.
"The object removed has been corrupted or isn't compatible with Microsoft support requirements, and it's in an inconsistent state. The following validation errors happened:
The access control entry defines the ObjectType 'a8df73ef-c5ea-11d1-bbcb-0080c76670c0' that can't be resolved.."
As far as I can figure 'a8df73ef-c5ea-11d1-bbcb-0080c76670c0' referrs to the 'Employee Number' LDAP attribute, which a group object does not have?
It doesn't appear to cause any issues, but I would still like to fix the problem.
Anyone got any ideas to what might be causing this error? We are running Exchange 2016 CU16 in a hybrid environment.
15 Replies
Gly Hi, see if this can help https://www.admin-enclave.com/en/articles/exchange/253-resolved-how-to-fix-damaged-or-corrupt-health-mailbox-on-exchange-2016.html
ChristianBergstrom
Thank you for the suggestion.
I ran "Get-Mailbox -monitoring" but found no errors there.Gly Hey, try this then 🙂
https://social.technet.microsoft.com/Forums/en-US/213afa53-0b61-4dd6-a807-a0262aa16474/the-access-control-entry-defines-the-objecttype-9b026da60d3c465c8bee5199d7165cba-that?forum=Exch2016Adm
What I want to highlight is this.
1. Run the IISReset on all Exchange server.
2. If reset IIS does work, reboot all Exchange server and check the result.
