CR02 Test formule whit the field key

Dear guru,

i create a fied key whit the field quantity.

I create a formulas for the requirement capacity .

When in the transaction CR02 ( area capacity ) in the test formula the system don't see the value in the field key custom .

How i can create a formula whit the value = time machine * quantity in the filed quantity of the FILE(quantity 1 ) ?

Thansk a lot

PP TEAM

Daniele Pistilli