How To Fix /IWFND/MED_CHECK030 - Composite annotation value for '&1' must be blank

/IWFND/MED_CHECK030 - Overview

• Message type: E = Error

• Message class: /IWFND/MED_CHECK -

• Message number: 030

• Message text: Composite annotation value for '&1' must be blank

Self-Explanatory Message

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/IWFND/MED_CHECK030 - Details

• The SAP error message /IWFND/MED_CHECK030 indicates that there is an issue with the composite annotation value in your OData service. Specifically, the message states that the composite annotation value for a certain entity must be blank, which typically means that the system is expecting a certain field or property to be empty but it is not.
  
  Cause:
  
  Incorrect Annotation Configuration: The error often arises from incorrect or conflicting annotations in your OData service definition. This can happen if you have defined a composite annotation that is not allowed to have a value.
  Service Metadata Issues: If the metadata of the OData service is not correctly defined or if there are inconsistencies in the service implementation, it can lead to this error.
  Data Model Issues: The underlying data model may have constraints that are not being adhered to, leading to this error when the service is called.
  
  
  Solution:
  
  
  Check Annotations: Review the annotations in your OData service