How To Fix FL378 - Resumable exceptions are not supported in RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 378

• Message text: Resumable exceptions are not supported in RFC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FL378 - Resumable exceptions are not supported in RFC ?

  The SAP error message FL378 indicates that there is an issue with resumable exceptions in the context of Remote Function Calls (RFC). This error typically arises when a function module that is called remotely attempts to handle exceptions that are not supported in the RFC context.
  Cause:
  
  Resumable Exceptions: In SAP, certain exceptions can be marked as "resumable," meaning that the program can continue execution after handling the exception. However, RFC does not support resumable exceptions because it requires a clear and immediate response to the calling program.
  Function Module Design: The function module being called may have been designed to raise resumable exceptions, which is incompatible with the RFC mechanism.
  Incorrect Exception Handling: The function module may not be handling exceptions properly, leading to the error when called via RFC.
  
  Solution:
  
  Modify the Function Module: If you have access to the function module's code, you should modify it to ensure that it does not raise resumable exceptions. Instead, use standard exceptions that are compatible with RFC.
  Check Exception Handling: Review the exception handling logic in the function module. Ensure that it uses non-resumable exceptions (like CX_SY_NO_HANDLER, CX_ROOT, etc.) that can be properly handled in an RFC context.
  Use RFC-Compatible Function Modules: If you are calling a third-party or standard SAP function module, check if there is an alternative that does not raise resumable exceptions.
  Error Logging: Implement logging within the function module to capture any unexpected behavior or exceptions that may arise during execution.
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP to enable communication between different SAP systems or between SAP and non-SAP systems.
  Exception Handling in ABAP: Understanding how exceptions work in ABAP is crucial. Resumable exceptions are typically used in dialog programs, while non-resumable exceptions are used in background processing and RFC calls.
  SAP Notes: Check SAP Notes for any specific guidance or patches related to the function module you are using. Sometimes, SAP provides updates or fixes for known issues.
  
  If you continue to experience issues after making these changes, consider reaching out to SAP support or consulting with an experienced ABAP developer for further assistance.