How To Fix /IWNGW/CM_HUB089 - Csrf token or rest client not found while getting metadata in callback

/IWNGW/CM_HUB089 - Overview

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 089

• Message text: Csrf token or rest client not found while getting metadata in callback

Self-Explanatory Message

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/IWNGW/CM_HUB089 - Details

• The SAP error message /IWNGW/CM_HUB089 Csrf token or rest client not found while getting metadata in callback typically occurs in the context of SAP Gateway services, particularly when dealing with OData services. This error indicates that there is an issue with the CSRF (Cross-Site Request Forgery) token or the REST client configuration when trying to retrieve metadata.
  Causes:
  
  Missing CSRF Token: The CSRF token is required for certain HTTP methods (like POST, PUT, DELETE) to prevent CSRF attacks. If the token is not present or not valid, the request will fail.
  Session Issues: If the session has expired or if there are issues with the user session, the CSRF token may not be valid.
  Incorrect REST Client Configuration: The REST client may not be properly configured to handle CSRF tokens, or it may not be sending the token with the request.
  Network Issues: Sometimes, network issues can prevent the proper exchange of tokens between the