How To Fix /SAPAPO/OBREF000 - Program error: Invalid function code &1 for call &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OBREF -

• Message number: 000

• Message text: Program error: Invalid function code &1 for call &2

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 /SAPAPO/OBREF000 - Program error: Invalid function code &1 for call &2 ?

  The SAP error message /SAPAPO/OBREF000 Program error: Invalid function code &1 for call &2 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the function code being used in a specific call within the program. This error can arise due to various reasons, including configuration issues, coding errors, or data inconsistencies.
  Causes:
  
  Invalid Function Code: The function code being referenced in the error message is not recognized or is not valid for the specific context in which it is being called.
  Custom Development Issues: If there are custom enhancements or modifications in the APO system, they may be incorrectly implemented, leading to this error.
  Data Inconsistencies: There may be issues with the data being processed, such as missing or incorrect entries that the function code relies on.
  System Configuration: Incorrect configuration settings in the APO system can lead to function codes not being recognized.
  
  Solutions:
  
  Check Function Code: Verify the function code mentioned in the error message. Ensure that it is valid and correctly implemented in the context of the call.
  Review Custom Code: If there are custom developments, review the code for any errors or inconsistencies. Ensure that the function codes used are appropriate for the calls being made.
  Data Validation: Check the data being processed at the time of the error. Ensure that all required data is present and correctly formatted.
  System Configuration: Review the configuration settings in the APO system to ensure that they are set up correctly. This may involve checking settings related to planning areas, master data, or other relevant configurations.
  SAP Notes and Support: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Debugging: If you have access to the development environment, consider debugging the program to trace the execution flow and identify where the invalid function code is being called.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for APO to understand the context of the function codes and their expected behavior.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes in APO that may help in troubleshooting, such as /SAPAPO/SDP94 for planning book maintenance or /SAPAPO/MC90 for checking configuration settings.
  
  If the issue persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.