How To Fix WS_TOOL196 - Service Definition cannot start with an underscore

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 196

• Message text: Service Definition cannot start with an underscore

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 WS_TOOL196 - Service Definition cannot start with an underscore ?

  SAP Error Message:
  WS_TOOL196 Service Definition cannot start with an underscore
  
  
  Cause:
  This error occurs when you try to create or activate a Web Service Definition (in SOAMANAGER or via transaction SE80 or SICF) with a service name that begins with an underscore (_). SAP does not allow service definitions or service names to start with an underscore because it violates the naming conventions for web services in the SAP system.
  
  Explanation:
  
  The underscore character at the beginning of a service name is reserved or considered invalid.
  Service names must follow certain naming rules to ensure proper registration, activation, and consumption.
  This restriction helps avoid conflicts or issues in the service registry and URL handling.
  
  
  
  Solution:
  
  Rename the service definition so that it does not start with an underscore.
  Use only alphanumeric characters or allowed special characters (usually letters, numbers, and sometimes hyphens or dots) at the start of the service name.
  For example, instead of _MyService, use MyService or Svc_MyService.
  
  
  Related