How To Fix WSS042 - Missing credential. Specify signature PSE for message protection.

WSS042 - Overview

• Message type: E = Error

• Message class: WSS - Web Services Security

• Message number: 042

• Message text: Missing credential. Specify signature PSE for message protection.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WSS042 - Missing credential. Specify signature PSE for message protection. ?

  SAP Error Message:
  WSS042 Missing credential. Specify signature PSE for message protection.
  
  
  Cause:
  This error occurs in SAP Web Services Security (WS-Security) scenarios when the system expects a digital signature to be applied to the SOAP message, but the required signature credentials (PSE - Personal Security Environment) are not specified or missing. Essentially, the system is configured to require message protection (signing), but the signature PSE is not defined or not accessible.
  Common causes include:
  
  The PSE for signing is not created or imported in the SAP system.
  The PSE is not assigned/configured in the Web Service configuration.
  The SOAP message is expected to be signed, but the signature credentials are missing.
  Incorrect or missing configuration in the WS-Security profile or communication channel.
  The user or system does not have the necessary permissions to access the PSE.
  
  
  
  Solution:
  
  
  Create or Import the Signature PSE:
  
  Use transaction STRUST to create or import the PSE that contains the private key and certificate used for