How To Fix 1S420 - Error reading own certificate

1S420 - Overview

• Message type: E = Error

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

• Message number: 420

• Message text: Error reading own certificate

What causes this issue?

Cannot read the PSE's own certificate.

System Response

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

How to fix this error?

Check the PSE and the system settings. If necessary, generate a new
PSE. Note that doing so deletes the old key.

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 1S420 - Error reading own certificate ?

  The SAP error message 1S420: Error reading own certificate typically indicates an issue with the digital certificate used for secure communication in SAP systems. This error can occur in various contexts, such as when trying to establish a secure connection (e.g., HTTPS, SSL) or when using certain functionalities that require certificate validation.
  Causes:
  
  Missing Certificate: The required certificate may not be installed in the SAP system.
  Corrupted Certificate: The certificate file may be corrupted or improperly formatted.
  Incorrect Configuration: The system may not be configured correctly to access the certificate.
  Expired Certificate: The certificate may have expired and needs to be renewed.
  Access Permissions: The user or the system may not have the necessary permissions to read the certificate file.
  Path Issues: The path to the certificate may be incorrect or the certificate may not be in the expected location.
  
  Solutions:
  
  
  Check Certificate Installation:
  
  Ensure that the required certificate is installed in the SAP system. You can check this in