Message type: E = Error
Message class:  SADL_GW_DT_CDS - Messages CDS Checks 
Message number: 007
Message text: Do not use the path expression closed using the element &1.
In the consumption CDS view, a path expression that is closed using an
element is used. Only a path expression that consists of one association
and is closed using an element is allowed.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Remove the path expression that is closed using an element from the CDS
view.
Contact the corresponding developer of the CDS view to correct the
error.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message SADL_GW_DT_CDS007 typically occurs in the context of SAP Gateway and Core Data Services (CDS) when there is an issue with the way a path expression is being used in a data model or service definition. This error indicates that the path expression is closed using an element that is not allowed in the context of the operation being performed.
Cause: The error is generally caused by one of the following reasons: Invalid Path Expression: The path expression used in the CDS view or service definition is not valid. This can happen if the path is trying to access a field or entity that is not part of the current context or is not accessible. Closed Path: The path expression is closed using an element that is not appropriate for the operation. This can occur if the path is trying to navigate through associations or relationships that are not correctly defined
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Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
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