How To Fix SOAUTH2018 - OAuth 2.0 client &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: SOAUTH2 - OAuth2 Messages

• Message number: 018

• Message text: OAuth 2.0 client &1 does not exist

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 SOAUTH2018 - OAuth 2.0 client &1 does not exist ?

  The SAP error message SOAUTH2018 indicates that there is an issue with the OAuth 2.0 client configuration in your SAP system. Specifically, it means that the OAuth 2.0 client you are trying to use does not exist or is not properly configured.
  Cause:
  
  Non-existent Client: The specified OAuth 2.0 client ID does not exist in the system.
  Incorrect Configuration: The OAuth 2.0 client may not have been set up correctly, or the client ID being referenced is incorrect.
  Authorization Issues: The user or service trying to access the OAuth client may not have the necessary permissions.
  Transport Issues: If the configuration was transported from another system, it may not have been transported correctly.
  
  Solution:
  
  
  Check Client Configuration:
  
  Go to the transaction code SOAUTH in your SAP system.
  Verify that the OAuth 2.0 client you are trying to use is listed and correctly configured.
  Ensure that the client ID matches what you are using in your application or service.
  
  
  
  Create or Update Client:
  
  If the client does not exist, you may need to create a new OAuth 2.0 client.
  If it exists but is misconfigured, update the necessary fields (like redirect URIs, scopes, etc.).
  
  
  
  Check Authorizations:
  
  Ensure that the user or service account has the necessary authorizations to access the OAuth client.
  Check roles and profiles assigned to the user/service account.
  
  
  
  Review Transport Requests:
  
  If the configuration was transported from another system, check the transport logs to ensure that the OAuth client configuration was included and correctly applied.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation for OAuth 2.0 configuration to ensure all steps have been followed correctly.
  
  
  
  System Logs:
  
  Check system logs (transaction SLG1) for any additional error messages or warnings that might provide more context about the issue.
  
  
  
  Related Information:
  
  OAuth 2.0 Overview: Understanding the OAuth 2.0 framework and how it is implemented in SAP can help in troubleshooting.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address specific issues related to OAuth 2.0 clients.
  Community Forums: Engage with SAP community forums or SAP Help Portal for additional insights and shared experiences from other users.
  
  By following these steps, you should be able to identify and resolve the issue related to the SOAUTH2018 error message.