How To Fix SRT_WSP2388 - Unsupported authentication method found: '&1'

SRT_WSP2388 - Overview

• Message type: E = Error

• Message class: SRT_WSP2 - Messages for SRT WSP

• Message number: 388

• Message text: Unsupported authentication method found: '&1'

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SRT_WSP2388 - Unsupported authentication method found: '&1' ?

  The SAP error message SRT_WSP2388 indicates that an unsupported authentication method has been detected in a web service call. This error typically arises when the web service client attempts to use an authentication method that the SAP system does not support or is not configured to handle.
  
  Cause:
  
  Unsupported Authentication Method: The client may be trying to use an authentication method (like Basic Authentication, WS-Security, etc.) that is not enabled or supported by the SAP system.
  
  Configuration Issues: The web service might be configured incorrectly, leading to the use of an unsupported authentication method.
  Version Mismatch: There may be a mismatch between the client and server versions, leading to unsupported features being requested.
  
  
  Solution:
  
  
  Check Authentication Method: Verify the authentication method being used by the client. Ensure that it is supported by the SAP system. Common methods include:
  
  Basic Authentication
  WS-Security
  OAuth
  SAML
  
  
  
  Configure SAP for Supported Methods: If the authentication method is indeed required, you may need to configure the