How To Fix /IWBEP/MGW_COF_MSG012 - You can assign exactly one model to a group

/IWBEP/MGW_COF_MSG012 - Overview

• Message type: E = Error

• Message class: /IWBEP/MGW_COF_MSG -

• Message number: 012

• Message text: You can assign exactly one model to a group

Self-Explanatory Message

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/IWBEP/MGW_COF_MSG012 - Details

• The SAP error message /IWBEP/MGW_COF_MSG012 indicates that you are trying to assign more than one model to a group in the SAP Gateway framework, which is not allowed. This error typically occurs when you are working with OData services and trying to configure the data model.
  
  Cause:
  The error is caused by the attempt to assign multiple data models to a single group in the SAP Gateway. In the context of SAP Gateway, a "group" is meant to contain exactly one data model, and trying to assign more than one will trigger this error.
  
  Solution:
  To resolve this error, you should ensure that each group is assigned only one model. Here are the steps you can take:
  
  
  Check Group Assignments: Review the groups you have created in the SAP Gateway Service Builder (transaction code SEGW). Ensure that each group has only one model assigned.
  
  
  Modify Group Configuration:
  
  Go to the Service Builder (SEGW).
  Navigate to the "Service" section