Production Run "Return Unused Materials To Warehouse" allows all materials to be returned even if quantity produced has been declared

[Christian Carlow]

Shouldn't the "Return Unused Materials To Warehouse" form limit the 
amount of materials that can be returned based on the amount that has 
been produced by the first production run task?  In other words, for a 
production run to produce 10 pizzas requiring 10 PEPPERS-G as materials 
for example, if the first task produces 2 and rejects 2 then shouldn't 
the maximum quantity that can be returned be 6 since 4 can be considered 
to have been processed into WIP-variants?

If so this problem is complicated by BOM materials required at different 
proportions which can't be determined if materials are added on the 
"Actual Materials" tab.  Meaning that if 1 PIZZA requires 1 PEPPERS-G 
and 2 PEPPERS-H, then without the information being specified as BOMs, 
the proportion 2-1 for PEPPERS-H cannot be determined and therefore 
cannot have the material return limit rule applied correctly.  This 
could be resolved by changing the "Materials" tab that appears before 
Production Runs are confirmed so that it accepts a proportional quantity 
rather than the actual quantity of the materials needed.  In other words 
it would work just like the BOM quantity field.  So for a production run 
to produce 10 PIZZA, rather than manually adding 10 PEPPERS-G and 20 
PEPPERS-H, instead a BOM quantity of 1 would be specified for PEPPERS-G 
and 2 for PEPPERS-H.  Then the production run would look at the quantity 
to produce times the BOM quantities to determine how much of single 
material is needed to produce a single good.  So 10 PIZZAs are supposed 
to be produced so 1*10 = 10 PEPPERS-G and 2*10 = 20 PEPPERS-H.