How To Fix /AIF/API_CUST170 - The user &1 for user-recipient assignment does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/API_CUST -

• Message number: 170

• Message text: The user &1 for user-recipient assignment does not exist

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 /AIF/API_CUST170 - The user &1 for user-recipient assignment does not exist ?

  The SAP error message /AIF/API_CUST170 The user &1 for user-recipient assignment does not exist typically occurs in the context of the Application Interface Framework (AIF) when there is an issue with user-recipient assignments. This error indicates that the system is trying to find a user that has not been defined or does not exist in the system.
  Cause:
  
  Non-existent User: The user specified in the error message (&1) does not exist in the SAP system.
  Incorrect User Assignment: The user might have been incorrectly assigned in the configuration settings for the AIF.
  User Deactivation: The user might have been deactivated or deleted from the system.
  Authorization Issues: The user may not have the necessary authorizations to be recognized in the context of the AIF.
  
  Solution:
  
  
  Check User Existence:
  
  Go to transaction SU01 (User Maintenance) and check if the user specified in the error message exists.
  If the user does not exist, you will need to create the user or correct the user assignment in the AIF configuration.
  
  
  
  Verify User Assignment:
  
  Check the configuration settings in AIF where user-recipient assignments are defined. Ensure that the user is correctly assigned to the relevant recipient.
  You can check this in transaction AIF or through the relevant configuration transactions.
  
  
  
  User Activation:
  
  If the user exists but is inactive, you can reactivate the user in transaction SU01.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to perform the actions required in the AIF. You can check this in transaction SU53 after attempting the action that led to the error.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or notes related to AIF for any specific configurations or requirements that might be relevant to your scenario.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SU01: User Maintenance
  AIF: Application Interface Framework
  SU53: Authorization Check
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  User Management: Familiarize yourself with user management best practices in SAP to avoid similar issues in the future.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or Security team for further assistance, as they may have additional insights or access to logs that can help diagnose the problem.