You can't disable ADFS authentication for the Exchange admin center if it is still enabled for Outlook Web App. To disable it for Outlook Web App, run Get-OwaVirtualDirectory | Set-OwaVirtualDirectory -AdfsAuthentication $false
You can't create a new admin audit log search because the arbitration mailbox 'SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}' ...
You can't create a site mailbox because the organization's site mailbox provisioning policy can't be loaded. Please try again ...
You can't delete the default trusted publishing domain (TPD). If you want to delete this TPD, you have to make another TPD ...
You can't delete the sensitive data type '{0}' because the transport rule '{1}' uses it. Delete any transport rules that ...
You can't disable ADFS authentication for the Exchange admin center if it is still enabled for Outlook Web App. To disable ...
You can't disconnect the SharePoint site "{0}" from the site mailbox, because you don't have the necessary permissions for ...
You can't forward email to '{0}' because the address format isn't correct. Please enter an email address with this format: ...
You can't grant SendOnBehalfTo to "{0}". You can only grant SendOnBehalfTo to mailboxes, mail users, security groups, distribution ...
You can't modify the "{0}" management scope because the change will impact the "{1}" management role assignment and would ...