This is the hash key of the attributes which make up the composite key--- MappingName and ColumnId ---for the Mapping Target Fields resource and used to uniquely identify an instance of Mapping Target Fields. The client should not generate the hash key value. Instead, the client should query on the Mapping Target Fields collection resource with a filter on the primary key values in order to navigate to a specific instance of Mapping Target Fields.
For example: publicSectorMappingTargetFields?q=MappingName=<value1>;ColumnId=<value2>
No content. This task does not return elements in the response body.