How To Fix 1S436 - Invalid certificate request

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 436

• Message text: Invalid certificate request

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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1S436 - Invalid certificate request ?

  The SAP error message 1S436: Invalid certificate request typically occurs when there is an issue with the digital certificate request process in the SAP system. This error can arise in various contexts, such as when generating or processing a certificate request for secure communications (e.g., SSL/TLS).
  Causes:
  
  Malformed Certificate Request: The certificate request may not conform to the expected format or standards.
  Incorrect Configuration: The configuration settings for the certificate generation process may be incorrect or incomplete.
  Missing or Invalid Key Pair: The private key associated with the certificate request may be missing or invalid.
  Expired or Revoked Certificates: The certificate authority (CA) may have revoked or expired the certificate that is being requested.
  Incompatible Cryptographic Algorithms: The algorithms used in the certificate request may not be supported by the CA or the SAP system.
  
  Solutions:
  
  Check Certificate Request Format: Ensure that the certificate request is correctly formatted and adheres to the standards required by the CA.
  Review Configuration Settings: Verify the configuration settings in the SAP system related to the certificate generation process. This includes checking the transaction codes used for generating certificates (e.g., STRUST).
  Validate Key Pair: Ensure that the private key associated with the certificate request is present and valid. You may need to regenerate the key pair if it is missing or corrupted.
  Consult CA Status: Check the status of the certificate with the CA to ensure it has not been revoked or expired. If it has, you will need to request a new certificate.
  Use Supported Algorithms: Ensure that the cryptographic algorithms used in the certificate request are compatible with both the SAP system and the CA.
  
  Related Information:
  
  
  Transaction Codes: Common transaction codes related to certificate management in SAP include:
  
  STRUST: For managing SSL certificates.
  STRUSTSSL: For managing SSL server certificates.
  STRUSTPSE: For managing personal security environments.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to certificate requests and SSL configurations. You can search the SAP Support Portal for notes related to error 1S436.
  
  
  Documentation: Refer to the official SAP documentation for guidance on configuring SSL and managing certificates in your specific SAP environment.
  
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.