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