Picking List - On Purchase Order Select Populate Sales Order

When you enter the purchase order number on the new picking slip it should populate the following:
Sales order
Customer and customer name
Delivery Address
All items ( item code, item name, description, quantity, uom)

Please assist

You should write the custom javascript writing the trigger on the “Purchase Order Number”. Please refer the following documentation for more -

`Hi Manas , what I am trying to do is it possible

is there a guide showing a link between purchase order and sales order?`

@shmuel Check if this is useful for you.