How To Fix CO156 - User & is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 156

• Message text: User & is not defined

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CO156 - User & is not defined ?

  The SAP error message CO156 ("User & is not defined") typically occurs in the context of controlling (CO) or production planning (PP) modules when a user is referenced in a transaction or configuration but is not defined in the system. This can happen in various scenarios, such as when trying to assign a user to a cost center, internal order, or other controlling objects.
  Cause:
  
  User Not Defined: The user ID referenced in the transaction does not exist in the SAP user master data.
  Authorization Issues: The user may exist, but the necessary authorizations to access the relevant data or transaction are not granted.
  Configuration Issues: There may be a configuration issue where the user is not properly assigned to the relevant organizational units or roles.
  
  Solution:
  
  
  Check User Master Data:
  
  Go to transaction code SU01 (User Maintenance) and check if the user ID exists.
  If the user does not exist, create a new user with the necessary details.
  
  
  
  Verify Authorizations:
  
  Ensure that the user has the appropriate roles and authorizations to perform the required actions.
  You can check this in transaction code SU53 after the error occurs to see if there are any authorization issues.
  
  
  
  Assign User to Relevant Objects:
  
  If the user exists but is not assigned to the relevant cost center, internal order, or other controlling objects, you may need to assign them using the appropriate transaction (e.g., KS01 for cost centers).
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings in the controlling module to ensure that users are correctly defined and assigned to the necessary organizational units.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details related to the transaction or configuration you are working with.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SU01 (User Maintenance), PFCG (Role Maintenance), KS01 (Create Cost Center), and others that may be relevant to your specific scenario.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that the user has the necessary roles assigned to perform actions in the CO module.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or security team for further assistance.