Fetch Fields From Doctype

I want fetch data from Item (Doctype)
When I insert field in (Doctype : Quotation , child table : Quotation Item , Link Field : items)
I try use Fetch From but isn’t working

Hi @Anas_Naguib,

Check the below links.
1: Fetching data from a linked master
2: Fetch a Field Value from a Document into a Transaction

Thanks.