How To Fix XS853 - No delivery to &1, authentication required

SAP Error Message - Details

• Message type: E = Error

• Message class: XS - SAPconnect: All messages

• Message number: 853

• Message text: No delivery to &1, authentication required

What causes this issue?

The message was processed successfully in the SAP system. The mail
server that is supposed to receive the message for further processing
requires authentication. The SAP system does not support this procedure.
As a result, the message was not delivered to recipient &V1&.
Information from External System

&V4&&V3&
ELSE
<No information available>
ENDIF

How to fix this error?

The administration settings must be changed. The specified mail server
must not request authentication.

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 XS853 - No delivery to &1, authentication required ?

  The SAP error message XS853 "No delivery to &1, authentication required" typically indicates that there is an issue with the authentication process when trying to access a resource or service in the SAP system. This error often occurs in scenarios involving SAP Gateway or OData services, where the system is expecting a valid authentication token or credentials to proceed with the request.
  Cause:
  
  Missing Authentication: The request is being made without proper authentication credentials.
  Expired Token: If you are using token-based authentication, the token may have expired.
  Incorrect Configuration: The service or resource may not be properly configured to allow access without authentication.
  User Permissions: The user account making the request may not have the necessary permissions to access the resource.
  Network Issues: There may be network-related issues preventing the authentication process from completing successfully.
  
  Solution:
  
  Check Authentication Method: Ensure that you are using the correct authentication method (Basic, OAuth, etc.) as required by the service.
  Provide Credentials: If the service requires credentials, make sure to include them in your request.
  Renew Token: If using token-based authentication, ensure that you obtain a new token if the current one has expired.
  Review Configuration: Check the configuration of the service to ensure that it is set up to allow access with the appropriate authentication.
  User Permissions: Verify that the user account has the necessary permissions to access the resource.
  Network Configuration: Ensure that there are no network issues that could be affecting the authentication process.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for details on authentication methods and configuration settings.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  Logs and Traces: Check the application logs and traces for more detailed error messages that can provide additional context for troubleshooting.
  SAP Notes: Look for relevant SAP Notes that may address known issues or provide patches related to authentication errors.
  
  By following these steps, you should be able to identify and resolve the cause of the XS853 error message in your SAP environment.