How To Fix /IWFND/CM_DESIGNTIME133 - Function group field must not be empty

/IWFND/CM_DESIGNTIME133 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 133

• Message text: Function group field must not be empty

Self-Explanatory Message

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/IWFND/CM_DESIGNTIME133 - Details

• The SAP error message /IWFND/CM_DESIGNTIME133 Function group field must not be empty typically occurs in the context of SAP Gateway and OData service development. This error indicates that a required field, specifically the "Function Group" field, is not filled in when you are trying to create or modify an OData service or a related object.
  
  Cause:
  
  Missing Function Group: The most common cause of this error is that the Function Group field in the service definition or related configuration is left empty. This field is essential for the system to know which function group to use for the service.
  Incorrect Configuration: There may be an issue with the configuration of the OData service or the associated data model.
  Development Environment Issues: Sometimes, issues in the development environment or transport layer can lead to this error.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Service Definition:
  
  Go to the transaction code /IWFND/MAINT_SERVICE.
  Locate the OData service