How To Fix HRPAYDEB2A831 - Unknown signature algorithm &1

SAP Error Message - Details

• Message type: E = Error

• Message class: HRPAYDEB2A - Business to Administration: Germany

• Message number: 831

• Message text: Unknown signature algorithm &1

What causes this issue?

When determining the algorithm for the signature, a value that is not
permitted in the procedure was determined.

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

Permitted values:
RSASSA-PSS - OID: 1.2.840.113549.1.1.10
SHA256 - OID: 1.2.840.113549.1.1.11

System Response

The signature is not executed.

How to fix this error?

Check the certificate used (PSE). The information can be displayed in
transaction STURST.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message HRPAYDEB2A831 - Unknown signature algorithm &1 ?

  The SAP error message HRPAYDEB2A831 with the description "Unknown signature algorithm &1" typically occurs in the context of payroll processing or when dealing with digital signatures in SAP systems. This error indicates that the system has encountered a signature algorithm that it does not recognize or support.
  Cause:
  
  Unsupported Signature Algorithm: The error is primarily caused by the use of a signature algorithm that is not recognized by the SAP system. This can happen if the algorithm is not configured correctly or if the system is outdated and does not support newer algorithms.
  Configuration Issues: There may be issues in the configuration of the digital signature settings in the SAP system.
  Version Compatibility: The version of the SAP system may not support the signature algorithm being used, especially if it is a newer algorithm introduced in later versions.
  
  Solution:
  
  Check Configuration: Review the configuration settings related to digital signatures in the SAP system. Ensure that the signature algorithms being used are supported by your version of SAP.
  Update SAP System: If the algorithm is a newer one, consider updating your SAP system to a version that supports the required signature algorithm.
  Use Supported Algorithms: Modify the payroll or digital signature process to use a supported signature algorithm. You may need to consult SAP documentation or your SAP Basis team for a list of supported algorithms.
  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 checking configurations and updates, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  SAP Documentation: Review the official SAP documentation related to digital signatures and payroll processing for guidance on supported algorithms and configuration settings.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  System Logs: Check system logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.