When creating a case I get the below error.
Access Error The system could not log you on. This could be because your user record or the business unit you belong to has been disabled in Microsoft Dynamics 365. If you contact support, please provide the technical details.
This occurred shortly after deleting the CRM Admin user and creating a new CRM Admin user in the Office 365 users screen.
The more technical message is
The user with SystemUserId=bb51ba1c-66e8-4dc1-82ca-cb64e25f3ff9 in OrganizationContext=7e061672-3a31-4588-9770-9f94711c7f09 is disabledDetail.