Hi All,

I would appreciate your help/guidance for the following scenario. 

1. There is a "Purchase Order" form where there is a sub form called "PO Detail".

2. "Purchase Order" form have date, party etc. fields whereas "PO Detail" sub form have Item, Quantity, Rate, Amount etc. fields.

3. Another form called "GRN" (Good Receipt Notes) also has a sub form "GRN Detail".

4. "GRN" form have date, PO List (look up field, referencing "Purchase Order" form).

5. Now, when the user will select the PO from PO List available in "GRN" form, data should come from "PO Detail" sub form of "Purchase Order" form for selected PO Number.