How To Fix E9894 - Internal error: Sequence for subscreen function modules (&1 &2 &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: E9 - General IS-U Error Messages

• Message number: 894

• Message text: Internal error: Sequence for subscreen function modules (&1 &2 &3)

What causes this issue?

The program has included a subscreen and ignored the call sequence of
the control function module.
<ZH>Parameter</>
&V1&: Always NOTICE
&V2&: Name of the function module with which the error was determined
&V3&: Name of the function module which was not found at its call
location
Possible reasons:
OPEN function module was not called up first
PAI_AFTER module was not called up directly after the PAI_BEFORE module

System Response

The system can not perform your request due to a program error.

How to fix this error?

Note:
the message text and the message number
the name of the function module
the transaction/report
the environment mode
and the entries which lead to this error.
Send a problem message with these specifications to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E9894 - Internal error: Sequence for subscreen function modules (&1 &2 &3) ?

  The SAP error message E9894, which states "Internal error: Sequence for subscreen function modules (&1 &2 &3)," typically indicates an issue with the sequence in which function modules are being called for subscreens in an SAP application. This error can arise due to various reasons, including incorrect configuration, programming errors, or issues with the data being processed.
  Causes:
  
  Incorrect Function Module Sequence: The error may occur if the function modules for subscreens are not called in the correct order.
  Programming Errors: There may be issues in the ABAP code where the subscreen function modules are defined or invoked.
  Data Issues: If the data being passed to the subscreen function modules is not valid or is in an unexpected format, it can lead to this error.
  Custom Enhancements: If there are custom enhancements or modifications in the standard SAP code, they may interfere with the expected sequence of function calls.
  
  Solutions:
  
  Check Function Module Sequence: Review the code to ensure that the function modules for the subscreens are being called in the correct order. Ensure that any dependencies between the modules are respected.
  Debugging: Use the ABAP debugger to step through the code and identify where the error occurs. This can help pinpoint the exact function module or line of code causing the issue.
  Review Custom Code: If there are custom enhancements, review them to ensure they do not disrupt the standard flow of the application. Consider temporarily disabling custom code to see if the error persists.
  Data Validation: Ensure that the data being passed to the function modules is valid and meets the expected format. Implement checks to validate data before processing.
  SAP Notes: 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 known issues.
  Consult Documentation: Review the documentation for the specific transaction or module you are working with to ensure that you are following the correct procedures.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may want to look at specific transaction codes related to the module you are working with.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to diagnose and resolve the E9894 error in your SAP environment.