How To Fix 1S533 - Unknown signature method

SAP Error Message - Details

• Message type: E = Error

• Message class: 1S - Messages for SSF ("Secure Store & Forward")

• Message number: 533

• Message text: Unknown signature method

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1S533 - Unknown signature method ?

  The SAP error message 1S533: Unknown signature method typically occurs in the context of digital signatures or secure communications within SAP systems. This error indicates that the system is unable to recognize or process the signature method specified in the configuration or the document being processed.
  Causes:
  
  Unsupported Signature Method: The signature method specified in the configuration or document is not supported by the SAP system.
  Configuration Issues: There may be incorrect or incomplete configuration settings related to digital signatures in the SAP system.
  Missing Cryptographic Libraries: The necessary cryptographic libraries or components required to support the specified signature method may not be installed or configured properly.
  Version Compatibility: The version of the SAP system may not support the signature method being used, especially if it is a newer or less common method.
  
  Solutions:
  
  Check Configuration: Review the configuration settings related to digital signatures in the SAP system. Ensure that the signature method being used is correctly configured and supported.
  Update SAP System: If the signature method is a newer one, consider updating your SAP system to a version that supports it.
  Install Required Libraries: Ensure that all necessary cryptographic libraries and components are installed and properly configured in the SAP environment.
  Consult Documentation: Refer to SAP documentation or notes related to digital signatures to verify the supported methods and any specific configuration steps required.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide guidance based on the specific version and configuration of your SAP system.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates regarding supported signature methods.
  Security Settings: Review the security settings in the SAP system, as they may impact the ability to process certain signature methods.
  Testing: If possible, test with different signature methods to identify which ones are supported and which ones trigger the error.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the 1S533 Unknown signature method error in your SAP system.