How To Fix /SAPAPO/ATP_BOP055 - Function cannot be performed; the system ignores the function

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP_BOP -

• Message number: 055

• Message text: Function cannot be performed; the system ignores the function

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 /SAPAPO/ATP_BOP055 - Function cannot be performed; the system ignores the function ?

  The SAP error message /SAPAPO/ATP_BOP055 indicates that a specific function cannot be performed in the Advanced Planning and Optimization (APO) module, and the system is ignoring the function call. This error typically arises in the context of Available-to-Promise (ATP) checks or during the execution of certain planning functions.
  Causes:
  
  Configuration Issues: The function may not be properly configured in the system. This could be due to missing settings in the APO system or incorrect master data.
  Data Issues: There may be missing or incorrect data related to the product, location, or other relevant master data that the function relies on.
  Authorization Problems: The user executing the function may not have the necessary authorizations to perform the action.
  System Status: The system may be in a status that does not allow the function to be executed, such as being in a maintenance mode or having certain locks in place.
  Functionality Not Supported: The specific function being called may not be supported in the current context or version of the system.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the APO system to ensure that all necessary parameters are set correctly. This includes checking the settings for the ATP check and any related planning functions.
  Validate Master Data: Ensure that all relevant master data (e.g., product master, location master, etc.) is complete and accurate. Look for any missing entries or inconsistencies.
  Review Authorizations: Check the user roles and authorizations to ensure that the user has the necessary permissions to execute the function.
  System Status Check: Verify the system status to ensure that it is not in a mode that would prevent the function from being executed. This may involve checking for any active locks or maintenance activities.
  Consult Documentation: Refer to SAP documentation or notes related to the specific function to determine if there are any known issues or limitations.
  Debugging: If the issue persists, consider debugging the function call to identify the exact point of failure and gather more detailed information about the error.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes in APO that may help in diagnosing or resolving the issue (e.g., /SAPAPO/ATC, /SAPAPO/ATP).
  
  If the problem continues after following these steps, it may be necessary to involve SAP support for further assistance.