How To Fix AH402 - This function is not available

SAP Error Message - Details

• 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 code SU53 or SUIM.
  Verify Configuration: Check if the function is properly configured in the system. This may involve consulting with your SAP Basis or functional team to ensure that the necessary settings are in place.
  Install Required Modules: If the function is part of a specific module, ensure that the module is installed and activated in your SAP system.
  Use Alternative Transactions: If the transaction code is restricted, look for alternative transaction codes or functions that provide similar capabilities.
  Consult Documentation: Refer to SAP documentation or notes related to the specific function to understand its availability and any prerequisites.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if you suspect it may be a bug or a system issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes associated with the function you are trying to access.
  SAP Notes: Search for SAP Notes related to the error message AH402 in the SAP Support Portal for any known issues or patches.
  User Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the AH402 error and implement a suitable solution.