How To Fix /IWFND/CM_UM005 - No issuer certificate defined on issuer table for the requested consumer

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_UM -

• Message number: 005

• Message text: No issuer certificate defined on issuer table for the requested consumer

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_UM005 - No issuer certificate defined on issuer table for the requested consumer ?

  The SAP error message /IWFND/CM_UM005 No issuer certificate defined on issuer table for the requested consumer typically occurs in the context of SAP Gateway and OData services when there is an issue with the security configuration, particularly related to the SSL/TLS certificates used for secure communication.
  Cause:
  This error indicates that the system is unable to find a valid issuer certificate for the consumer (client) that is trying to access the OData service. This can happen due to several reasons:
  
  Missing Certificate: The issuer certificate for the consumer is not defined in the issuer table.
  Incorrect Configuration: The configuration for the SSL/TLS settings may not be set up correctly.
  Expired Certificate: The certificate may have expired or is not valid anymore.
  Trust Relationship: There may be a trust issue between the consumer and the SAP system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Issuer Table:
  
  Go to transaction code STRUST in the SAP GUI.
  Check the "SSL Client (Anonymous)" or "SSL Client (Server)" tab to see if the issuer certificate for the consumer is present.
  If it is missing, you will need to import the correct issuer certificate.
  
  
  
  Import Certificate:
  
  If you have the issuer certificate, you can import it into the SAP system using the STRUST transaction.
  Make sure to import it into the correct SSL client/server context.
  
  
  
  Verify Certificate Validity:
  
  Ensure that the certificate is valid and not expired. If it is expired, you will need to renew it.
  
  
  
  Check Trust Relationships:
  
  Ensure that the trust relationship between the consumer and the SAP system is correctly established. This may involve checking the trust store and ensuring that the necessary certificates are present.
  
  
  
  Configuration Review:
  
  Review the configuration settings for the OData service and ensure that they are correctly set up to use the appropriate certificates.
  
  
  
  Restart Services:
  
  After making changes, it may be necessary to restart the relevant services or the entire SAP system to apply the changes.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  STRUST: Manage SSL certificates.
  SICF: Check the configuration of the OData service.
  SMICM: Monitor the Internet Communication Manager (ICM) settings.
  
  
  
  Documentation: Refer to SAP Help documentation for detailed steps on managing SSL certificates and configuring OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to resolve the /IWFND/CM_UM005 error and ensure that the necessary issuer certificates are correctly defined for the requested consumer.