As the example information above, if user input 1 for source quantity on cross item transfer function, program will convert target item quantity by “source qty x conversion ratio” (1x2 = 2) and this value can't edit by the user.
3.1.7.8 In case that the current stock unit of source item or target item on item general is not same as stock unit which keep in mapping screen. The cross item transfer function will alert error message and does not allow to do cross item. User has to update mapping table before do cross item transfer.