We are using the new v2 REST API and need to create reusable Purchase Order Inventory items — i.e. the items shown under Purchases → Purchase Orders → Purchase order inventory management — with purchase nominal codes such as 5000/5020.
POST /inventory appears to create sales inventory and rejects purchase nominal codes. Is there a supported v2 REST endpoint or parameter for creating Purchase Order Inventory items?
If not, can the legacy Item_Create method create a Purchase Order Inventory item rather than a Sales Inventory item, and if so what field identifies it as purchase inventory?