How To Fix SIG633 - External signature: Header data is updated

SAP Error Message - Details

• Message type: E = Error

• Message class: SIG - Digital Signature

• Message number: 633

• Message text: External signature: Header data is updated

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SIG633 - External signature: Header data is updated ?

  The SAP error message SIG633, which states "External signature: Header data is updated," typically occurs in the context of electronic signatures and document management within SAP systems. This error indicates that there is an issue with the external signature process, particularly related to the header data of the document being signed.
  Cause:
  
  Header Data Changes: The error usually arises when the header data of the document has been modified after the signing process was initiated. This can happen if there are changes to fields that are part of the document's metadata or if the document is being edited while the signature process is ongoing.
  Signature Configuration Issues: There may be misconfigurations in the external signature setup, such as incorrect parameters or settings in the SAP system or the external signature provider.
  Authorization Issues: The user attempting to sign the document may not have the necessary authorizations to perform the signing operation, especially if the document has been altered.
  
  Solution:
  
  Check Document Status: Ensure that the document has not been modified after the signing process was initiated. If changes are necessary, it may be required to restart the signing process after ensuring the document is in a stable state.
  Review Signature Configuration: Verify the configuration settings for the external signature in the SAP system. Ensure that all parameters are correctly set and that the integration with the external signature provider is functioning as expected.
  User Authorizations: Check the authorizations of the user attempting to sign the document. Ensure that they have the necessary permissions to perform the signing operation.
  Consult Documentation: Refer to SAP documentation or support notes related to electronic signatures and the specific error message for additional troubleshooting steps and best practices.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches that could resolve the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  External Signature Provider Documentation: If using a third-party external signature provider, consult their documentation for any specific requirements or troubleshooting steps related to integration with SAP.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP Basis or technical support team for further investigation.