How To Fix GP020 - Error while checking document header

SAP Error Message - Details

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 020

• Message text: Error while checking document header

What causes this issue?

Errors occurred while checking the document header.

System Response

The document is classified as containing errors.

How to fix this error?

The actual cause of the error can be found in the error log.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GP020 - Error while checking document header ?

  The SAP error message GP020, which states "Error while checking document header," typically occurs during the processing of documents in the SAP system, particularly in the context of financial transactions or document postings. This error can arise due to various reasons, and understanding the cause is essential for finding an appropriate solution.
  Causes of GP020 Error
  
  
  Missing or Incorrect Data: The document header may be missing required fields or contain incorrect data. This can include missing company codes, document types, or fiscal year.
  
  
  Authorization Issues: The user may not have the necessary authorizations to post or check the document, leading to this error.
  
  
  Configuration Issues: There may be configuration problems in the SAP system related to document types, number ranges, or other settings that affect document processing.
  
  
  Inconsistent Data: If there are inconsistencies in the data being processed (e.g., between the header and line items), this can trigger the error.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they may interfere with standard processing and lead to this error.
  
  
  Solutions to GP020 Error
  
  
  Check Document Header Data: Review the document header for any missing or incorrect information. Ensure that all required fields are filled out correctly.
  
  
  Verify Authorizations: Ensure that the user has the necessary authorizations to perform the action. This can be checked in the user roles and profiles.
  
  
  Review Configuration Settings: Check the configuration settings related to document types, number ranges, and other relevant settings in the SAP system. Ensure they are correctly set up.
  
  
  Data Consistency Check: Perform a consistency check on the data being processed. Ensure that the header and line items are aligned and that there are no discrepancies.
  
  
  Debugging Custom Code: If there are custom developments, consider debugging the code to identify any issues that may be causing the error.
  
  
  Consult 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 the issue.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  Related Information
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as FB01 (Post Document), FB02 (Change Document), or FB03 (Display Document).
  
  
  SAP Documentation: Review SAP documentation related to document processing and error handling for more insights.
  
  
  User Forums and Communities: Engage with SAP user communities and forums where similar issues may have been discussed, providing additional context and solutions.
  
  
  By systematically addressing the potential causes and applying the suggested solutions, you should be able to resolve the GP020 error in your SAP system.