Related Documents of a Purchase Order REST Endpoints

Requisition Lifecycle Details/Summary Attributes for Orders/Related Documents of a Purchase Order
The Related Documents resource retrieves the count of all unprocessed lines, negotiations, and documents such as shipments, receipts, invoices, if any, for a purchase order.
Get related documents for a purchase order
Method: get
Path: /fscmRestApi/resources/11.13.18.05/requisitionLifecycleDetails/{RequisitionHeaderId}/child/orderSummaryAttributes/{POHeaderId}/child/relatedDocuments/{POHeaderId2}
Get related documents for all purchase orders
Method: get
Path: /fscmRestApi/resources/11.13.18.05/requisitionLifecycleDetails/{RequisitionHeaderId}/child/orderSummaryAttributes/{POHeaderId}/child/relatedDocuments