Hello Every one i have a issue need to solve , i create a child doctype called "Old Ref " has one data field “old_ref” and make a customization for “Item” doctype and add this childtable as a table type field , now what i want to do is using this old old ref child table to search aout Item in Sales invoice when i add Item to Item tables , note : table field type can not add as a search field in Item doctype