How To Fix /SAPAPO/RRP101 - Error in function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RRP -

• Message number: 101

• Message text: Error in function module &1

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/RRP101 - Error in function module &1 ?

  The SAP error message /SAPAPO/RRP101 Error in function module &1 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with a function module that is being called during planning or execution processes. This error can arise due to various reasons, including configuration issues, data inconsistencies, or problems with the function module itself.
  Possible Causes:
  
  Function Module Issues: The function module referenced in the error message may have bugs or may not be implemented correctly.
  Data Inconsistencies: There may be inconsistencies in the master data or transaction data that the function module is trying to process.
  Configuration Errors: Incorrect configuration settings in APO or related modules can lead to this error.
  Authorization Issues: The user executing the function may not have the necessary authorizations to perform the action.
  System Performance: If the system is under heavy load, it may lead to timeouts or other issues that trigger this error.
  
  Solutions:
  
  Check the Function Module: Identify the function module indicated in the error message and check its implementation for any known issues or bugs. You can use transaction SE37 to view the function module.
  Review Data: Validate the data being processed by the function module. Check for any inconsistencies in master data (like material master, location master) or transaction data (like planned orders, purchase orders).
  Configuration Review: Ensure that the configuration settings in APO are correct. This includes checking settings related to planning areas, planning books, and data views.
  Authorization Check: Verify that the user has the necessary authorizations to execute the function. You can check this using transaction SU53 to analyze authorization failures.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  Performance Monitoring: If the issue is related to system performance, consider monitoring system resources and optimizing performance where necessary.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues with the specific function module or error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Debugging: If you have access to development tools, consider debugging the function module to identify the exact point of failure.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.