OData REST API extension point
Through the OData REST API extension point, Customer Defined Fields (CDFs) can be
used in combination with any related OData REST API. The CDFs of a particular table can be
used in all OData REST APIs that contain that table (entity type).
An OData REST API usually contains multiple entity types. Each entity type corresponds with an LN table. For example, the tdapipurPurchaseOrder.odata API contains the Order (tdpur400) and Line (tdpur401) entity types.
In the extension, you must first add the entity type (LN table) that contains the CDFs you want to use. Then select the CDFs you want to use for that entity type.
Through this OData extension, the values of CDFs in existing records can be retrieved by the GET methods of the API.
Depending on the involved API, the values of CDFs in existing records may also be updated, and the values of the CDFs may be specified when adding a record.
This diagram shows the position of the OData REST API extension:
