How To Fix /AIF/API_CUST160 - Custom function type &1 is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/API_CUST -

• Message number: 160

• Message text: Custom function type &1 is not valid

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_CUST160 - Custom function type &1 is not valid ?

  The SAP error message /AIF/API_CUST160 Custom function type &1 is not valid typically occurs in the context of the Application Interface Framework (AIF) when there is an issue with the custom function type being used in an interface configuration. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Invalid Function Type: The function type specified in the configuration does not exist or is not recognized by the system.
  Configuration Issues: There may be a misconfiguration in the AIF settings or the custom function type may not have been properly defined.
  Transport Issues: If the custom function type was recently transported from another system, it may not have been activated or may not exist in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the custom function type.
  
  Solutions:
  
  
  Check Function Type Definition:
  
  Go to the AIF configuration and verify that the custom function type is correctly defined.
  Ensure that the function type exists in the system and is active.
  
  
  
  Review Configuration Settings:
  
  Navigate to the AIF configuration settings and check if the custom function type is correctly assigned to the relevant interface.
  Make sure that all required parameters and settings are properly configured.
  
  
  
  Transport and Activation:
  
  If the function type was transported, ensure that it has been activated in the target system.
  Check the transport logs for any errors or issues during the transport process.
  
  
  
  Authorization Check:
  
  Verify that the user executing the function has the necessary authorizations to access the custom function type.
  Check the roles and authorizations assigned to the user.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the AIF process to identify where the error is occurring.
  Use transaction codes like SLG1 (Application Log) to check for any related logs that might provide more context on the error.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Review the official SAP documentation for AIF to understand the configuration and usage of custom function types.
  Community Forums: Engage with SAP community forums or support channels to see if others have encountered similar issues and how they resolved them.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the problem persists, consider reaching out to SAP support for further assistance.