How To Fix /IWFND/CM_DESIGNTIME119 - Child node '&1' does not exist for parent node '&2'

/IWFND/CM_DESIGNTIME119 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 119

• Message text: Child node '&1' does not exist for parent node '&2'

Self-Explanatory Message

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/IWFND/CM_DESIGNTIME119 - Details

• The SAP error message /IWFND/CM_DESIGNTIME119 indicates that there is an issue with the metadata definition in your OData service. Specifically, it means that a child node (entity or property) that is expected to exist under a parent node (entity type) is not found. This can occur during the design time of an OData service when the service is trying to access or reference a node that has not been defined or is incorrectly configured.
  Causes:
  
  Missing Entity or Property: The child node (entity or property) is not defined in the metadata of the OData service.
  Incorrect Naming: There may be a typo or mismatch in the naming of the child node in the service definition.
  Model Changes: If the underlying data model has changed (e.g., an entity was deleted or renamed), the OData service may still reference the old structure.
  Service Registration Issues: The OData service may not be properly registered or activated in the