In UI Requestor/Recipient/Ship-To Location are filled at item level in all line items however they appear differently in XML which is explained below.
SAP Business ByDeisgn
If Requestor is same at all items, then it is filled only at Header level, and not filled at Item level
If there are at least 2 different Requestors considering all items, then it is not filled at Header level and filled at each item level
The same behavior is applicable for Recipient/Ship-To Location fields also.
Requestor in Goods and Service Receipt form XML,Recipient in Goods and Service Receipt form XML,Ship-To Location in Goods and Service Receipt form XML, Goods and receipt XML, goods and receipt form , KBA , AP-GSP , Goods and Service Acknowledgement , Problem