How To Fix AH402 - This function is not available

AH402 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 402

• Message text: This function is not available

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH402 - This function is not available ?

  The SAP error message AH402 ("This function is not available") typically indicates that a specific function or feature you are trying to access is not available in the current context or configuration of your SAP system. This can occur for various reasons, including:
  Causes:
  
  Missing Authorization: The user may not have the necessary authorizations to access the function.
  
  Configuration Issues: The function may not be configured or activated in the system.
  Module Not Installed: The required module or component may not be installed in the SAP system.
  Transaction Code Restrictions: The transaction code you are trying to use may be restricted or not available in your current environment.
  System Version: The function may be available in a different version of SAP or in a different environment (e.g., development vs. production).
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to access the function. This can be done by checking the user's roles and authorizations in transaction