OTM REST APIs: Handling Master Data During Order Release Creation

Hi All,

We currently have an integration design in place for Order Release creation where the inbound integration uses Order Release XML. As part of this design, whenever an Order Release is created, the related master data (such as Locations, Items, and Contacts) is also created or updated within the same Order Release XML payload. This has been working well using the XML-based integration approach.

We are now in the process of transitioning from XML to JSON-based REST APIs and wanted to understand how this requirement can be handled in the REST

From what I see, in REST(JSON):

• Order Release has its own URI