How To Fix GENIL_WCF123 - Object &3 - method &1: method without return type

SAP Error Message - Details

• Message type: E = Error

• Message class: GENIL_WCF - Messages for genIL Model Editor

• Message number: 123

• Message text: Object &3 - method &1: method without return type

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GENIL_WCF123 - Object &3 - method &1: method without return type ?

  The SAP error message GENIL_WCF123 indicates that there is a method defined in a Business Object (BO) that does not have a return type, which is not allowed in the context of the SAP Generic Interaction Layer (GENIL) and Web Client Framework (WCF). This error typically arises when you are working with the Business Object Layer in SAP, particularly when defining methods in the context of a Web Dynpro or other SAP UI technologies.
  
  Cause:
  The error occurs due to one of the following reasons:
  
  Method Definition: A method in the Business Object is defined without a return type. In GENIL, all methods that are expected to be called must have a defined return type.
  Incorrect Method Signature: The method signature may not conform to the expected format, leading to the system not recognizing it as a valid method with a return type.
  
  Configuration Issues: There may be issues in the configuration of the Business