How To Fix WN308 - Internal error in form routine: & &

SAP Error Message - Details

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 308

• Message text: Internal error in form routine: & &

What causes this issue?

An error occurred in form routine &.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

INCLUDE ISR_SYSTEMFEHLER

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN308 - Internal error in form routine: & & ?

  The SAP error message WN308, which states "Internal error in form routine: & &", typically indicates that there is an issue within a specific form routine in the SAP system. This error can arise due to various reasons, including programming errors, data inconsistencies, or issues with the configuration of the SAP system.
  Causes:
  
  Programming Errors: There may be a bug or an unhandled exception in the ABAP code of the form routine.
  Data Issues: Inconsistent or unexpected data being processed by the form routine can lead to this error.
  Configuration Problems: Incorrect configuration settings in the related module or transaction can trigger this error.
  System Bugs: There may be known bugs in the version of SAP you are using that could lead to this error.
  
  Solutions:
  
  Check the ABAP Code: If you have access to the ABAP code, review the form routine mentioned in the error message. Look for any unhandled exceptions or logical errors.
  Data Validation: Ensure that the data being processed is valid and consistent. Check for any missing or incorrect entries in the relevant tables.
  SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates available that resolve the issue.
  Transaction Logs: Review transaction logs or system logs (SM21) to gather more context about the error and identify any patterns or related issues.
  Debugging: If you have the necessary permissions, you can use the ABAP debugger to step through the code and identify where the error occurs.
  Consult SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. Provide them with the error details and any relevant logs.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to locate the form routine and analyze its code.
  System Version: Be aware of the version of SAP you are using, as certain errors may be specific to particular releases or patches.
  User Permissions: Ensure that you have the necessary permissions to access the relevant transactions and data.
  
  By following these steps, you should be able to diagnose and potentially resolve the WN308 error in your SAP system.