Unable to update LineNumber using draftPurchaseOrders Rest API

Summary:

Im trying to update the field LineNumber using the Rest API draftPurchaseOrders to update as the document (https://docs.oracle.com/en/cloud/saas/procurement/24a/fapra/op-draftpurchaseorders-draftpurchaseordersuniqid-child-lines-polineid-patch.html). But there's a response error after using the API, here's the detail.

Rest API

/fscmRestApi/resources/11.13.18.05/draftPurchaseOrders/{draftPurchaseOrdersUniqID}/child/lines/{POLineId}

Method

PATCH

Body

{

"LineNumber": "4"

}

Response Error

Attribute set for LineNumber in entity DraftPurchaseOrdersRestServiceAM.DraftPurchaseOrderHeaderVO_lines_DraftPurchaseOrderHeaderVOToDraftPurchaseOrderLineVO_DraftPurchaseOrderLineVO failed