How To Fix B~012 - User unknown in &. No message created

SAP Error Message - Details

• Message type: E = Error

• Message class: B~ - Create Messages from the Customer System

• Message number: 012

• Message text: User unknown in &. No message created

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message B~012 - User unknown in &. No message created ?

  The SAP error message "B~012 User unknown in &. No message created" typically indicates that the system is unable to find a user in the specified user group or context. This error can occur in various scenarios, such as when trying to send messages, notifications, or when performing actions that require user identification.
  Cause:
  
  User Not Defined: The user ID specified does not exist in the SAP system.
  User Deactivation: The user might be deactivated or locked in the system.
  Incorrect User Group: The user might not belong to the user group or role that is being referenced.
  Authorization Issues: The user may not have the necessary authorizations to perform the action.
  Configuration Issues: There may be issues with the configuration of the messaging or notification system.
  
  Solution:
  
  
  Check User Existence:
  
  Go to transaction code SU01 and enter the user ID to check if the user exists in the system.
  If the user does not exist, create the user or correct the user ID being referenced.
  
  
  
  Check User Status:
  
  Ensure that the user is active and not locked. You can check this in the SU01 transaction.
  If the user is locked, unlock the user.
  
  
  
  Verify User Group Membership:
  
  Check if the user is part of the required user group or role. This can be done in the SU01 transaction under the "Roles" tab.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to perform the action that is generating the error. You can use transaction SU53 to analyze authorization issues.
  
  
  
  Check Configuration:
  
  If the error occurs in a specific application or module, review the configuration settings related to user notifications or messaging.
  Ensure that the relevant settings are correctly configured in the system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes for any specific guidance related to the error message.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SU01: User Maintenance
  SU53: Display Authorization Check
  PFCG: Role Maintenance (to check roles and authorizations)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  
  User Management: Familiarize yourself with user management best practices in SAP to prevent similar issues in the future.
  
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.