AI-generated Key Takeaways
- 
          Enumerates potential errors related to customer user access. 
- 
          Provides specific error types such as invalid user ID, disallowed removal, and issues with access roles. 
- 
          Includes errors for attempting to remove the last admin user from serving customers or managers under specific conditions. 
Enum describing possible customer user access errors.
| Enums | |
|---|---|
| 
 | Enum unspecified. | 
| 
 | The received error code is not known in this version. | 
| 
 | There is no user associated with the user id specified. | 
| 
 | Unable to remove the access between the user and customer. | 
| 
 | Unable to add or update the access role as specified. | 
| 
 | The user can't remove itself from an active serving customer if it's the last admin user and the customer doesn't have any owner manager | 
| 
 | Last admin user cannot be removed from a manager. |