How To Fix RPM_APPL028 - System error while calling function module &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RPM_APPL - RPM Appl messages

• Message number: 028

• Message text: System error while calling function module &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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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RPM_APPL028 - System error while calling function module &2 ?

  The SAP error message RPM_APPL028, which states "System error while calling function module &2," typically indicates that there is an issue with the execution of a specific function module in the SAP system. This error can arise from various underlying causes, and resolving it may require a systematic approach. Here are some potential causes, solutions, and related information:
  Causes:
  
  Function Module Issues: The function module specified in the error message may have bugs or may not be properly implemented.
  Authorization Problems: The user executing the function may not have the necessary authorizations to call the function module.
  Data Issues: Invalid or unexpected data being passed to the function module can lead to errors.
  System Configuration: Misconfigurations in the system or missing components can cause function modules to fail.
  Performance Issues: System performance problems, such as memory shortages or database locks, can lead to timeouts or failures when calling function modules.
  Transport Issues: If the function module was recently transported from another system, there may be inconsistencies or missing dependencies.
  
  Solutions:
  
  Check Function Module: Review the function module in transaction SE37 or SE80 to ensure it is functioning correctly. Test it with valid input data.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. Use transaction SU53 to check for authorization failures.
  Analyze Input Data: Validate the data being passed to the function module. Ensure that it meets the expected format and constraints.
  Check System Logs: Use transaction SLG1 to check application logs for any additional error messages or details that can provide more context.
  Debugging: If you have access, you can debug the function module to identify where the error occurs. Use transaction SE37 to set breakpoints and analyze the flow.
  System Performance: Monitor system performance and check for any resource bottlenecks. Use transaction ST22 to check for dumps that may provide more information.
  Transport Consistency: If the function module was recently transported, ensure that all dependencies and related objects are also transported and consistent.
  
  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 found.
  Documentation: Review the official SAP documentation for the specific function module to understand its expected behavior and requirements.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.