How To Fix /AIF/API_CUST126 - Custom message text &1 does not exist

/AIF/API_CUST126 - Overview

• Message type: E = Error

• Message class: /AIF/API_CUST -

• Message number: 126

• Message text: Custom message text &1 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.

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 /AIF/API_CUST126 - Custom message text &1 does not exist ?

  The SAP error message /AIF/API_CUST126 Custom message text &1 does not exist typically occurs in the context of the Application Interface Framework (AIF) when the system is unable to find a custom message text that is expected to be present in the system. This can happen for various reasons, such as missing configuration, incorrect message ID, or issues with the message text itself.
  
  Cause:
  
  Missing Message Text: The custom message text that is being referenced does not exist in the message class.
  Incorrect Message Class or ID: The message class or ID being used in the AIF configuration might be incorrect or not properly defined.
  Transport Issues: If the message text was recently transported from another system, it may not have been included or activated properly.
  Development Environment: If you are working in a development environment, the message text may not have been created or activated yet.
  
  
  Solution:
  
  
  Check Message Class:
  
  Go to transaction SE91 (Message Class) and