Cannot save changes because another change was made to the same configuration item at the same time. Submit your change again later.
Cannot process a call because a language pack is not installed. The language pack '%1' is not installed for workflow '%2' ...
Cannot publish topology changes. The BeClearinghouse setting defined in edge configuration and the AllowAllDomains setting ...
Cannot remove the registrar for a trusted application pool once set. Use New-CsTrustedApplicationPool and New-CsTrustedApplication ...
Cannot resolve the value "{0}" as an fully qualified domain name (FQDN) or service ID for a User Services service from configuration ...
Cannot save changes because another change was made to the same configuration item at the same time. Submit your change again ...
Cannot save role-based access control (RBAC) role because the associated security group does not exist in Active Directory. ...
Cannot send provisional response because the call must be in either Incoming or Establishing state when sending a provisional ...
Cannot specify an unknown manager. TenantId: '%1', ObjectId: '%2' Cause: Cannot specify a manager of an unknown type. Resolution: ...
Cannot specify both current client (OnLyncServer) and legacy client (OnOfficeCommunicationServer) users at the same time. ...