How To Fix ATO_CUSTOMER191 - Namespace of user is &1. Please assign User to Namespace &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: ATO_CUSTOMER - ATO Messages for the End User

• Message number: 191

• Message text: Namespace of user is &1. Please assign User to Namespace &2.

What causes this issue?

You want to change an item with namespace <(>&<)>2 but your user is
assigned to namespace <(>&<)>1.

System Response

A change of items with namespace <(>&<)>2 is not allowed as long as your
user is not assigned to this namespace.

How to fix this error?

Please go to the app Extensibility Settings and assign your user to
namespace <(>&<)>2

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ATO_CUSTOMER191 - Namespace of user is &1. Please assign User to Namespace &2. ?

  The SAP error message ATO_CUSTOMER191 indicates that there is an issue with the namespace assignment of a user in the SAP system. This error typically arises when a user is trying to perform an action that requires them to be assigned to a specific namespace, but they are not currently assigned to that namespace.
  Cause:
  
  Namespace Assignment: The user is not assigned to the required namespace. In SAP, namespaces are used to organize and manage objects, and users must be assigned to the appropriate namespace to access or modify those objects.
  User Role/Authorization: The user may not have the necessary roles or authorizations to access the namespace.
  Configuration Issues: There may be configuration issues in the system that prevent the user from being recognized as part of the required namespace.
  
  Solution:
  
  
  Assign User to Namespace:
  
  Go to transaction code SU01 (User Maintenance).
  Enter the username that is causing the error and click on the "Change" button.
  Navigate to the "Roles" tab and check if the user has the necessary roles that include the required namespace.
  If not, assign the user to the appropriate roles that include the namespace.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to access the namespace. This can be done by reviewing the user's roles and profiles in transaction PFCG (Role Maintenance).
  
  
  
  Consult with Basis Team:
  
  If you are unable to resolve the issue, consult with your SAP Basis team or system administrator. They can check the system configuration and ensure that the namespaces are correctly set up.
  
  
  
  Review Documentation:
  
  Check any relevant documentation or notes related to the specific namespace and user assignments. SAP Notes may provide additional insights or solutions.
  
  
  
  Related Information:
  
  Namespaces in SAP: Namespaces are used to define a unique area for development objects. They help in avoiding naming conflicts and organizing objects logically.
  User Roles and Authorizations: Understanding how roles and authorizations work in SAP is crucial for managing user access and permissions effectively.
  SAP Notes: Always check for any SAP Notes related to the error message for potential fixes or updates.
  
  By following these steps, you should be able to resolve the ATO_CUSTOMER191 error and ensure that the user is correctly assigned to the required namespace.