How To Fix /SAPAPO/TS_RLG_CPY026 - Internal error: Invalid function call

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TS_RLG_CPY -

• Message number: 026

• Message text: Internal error: Invalid function call

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TS_RLG_CPY026 - Internal error: Invalid function call ?

  The SAP error message /SAPAPO/TS_RLG_CPY026 Internal error: Invalid function call typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the execution of a function or method within the system. This error can arise due to various reasons, including configuration issues, data inconsistencies, or bugs in the system.
  Possible Causes:
  
  Configuration Issues: Incorrect settings in the APO system can lead to invalid function calls. This might include issues with master data, planning books, or data views.
  Data Inconsistencies: If the data being processed is incomplete or corrupted, it can trigger this error. This includes missing key figures or incorrect data types.
  Custom Code: If there are custom enhancements or modifications in the APO system, they might not be handling certain scenarios correctly, leading to this error.
  System Bugs: There may be known bugs in the version of SAP APO you are using that could cause this error under specific conditions.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the APO system, especially those related to the planning area, planning books, and data views. Ensure that all necessary settings are correctly defined.
  Data Validation: Validate the data being processed. Check for missing or inconsistent data in master data, transaction data, and key figures. Use transaction codes like /SAPAPO/SDP94 or /SAPAPO/MC62 to analyze data.
  Review Custom Code: If there are any custom enhancements, review the code to ensure that it is correctly implemented and does not lead to invalid function calls. Debugging the custom code may help identify the issue.
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that might address this specific error. SAP frequently releases patches and updates that fix known issues.
  System Logs: Check the system logs (transaction SLG1) for more detailed error messages or stack traces that can provide additional context about the error.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for monitoring and troubleshooting in SAP APO, such as /SAPAPO/SDP94 for demand planning and /SAPAPO/MC62 for checking key figures.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions or workarounds.
  Documentation: Review the official SAP documentation for APO to understand the expected behavior of the functions and methods being called.
  
  By following these steps, you should be able to diagnose and potentially resolve the /SAPAPO/TS_RLG_CPY026 Internal error: Invalid function call error in your SAP APO system.