is it possible to define a Z- field in a formula for at a workcenter in SAP.
At the time the production order is created i want that the system picks up this value instead the operation quantity.
Yes you can use Zfield in work center.
You can create your own parameter with T code OP17,
Use this paramter in your Zformula created by you with T code OP21
Also create your own standard value key ZSUK ( OP19 )where use your created paramter.
Its all depend on what your requirement.
& also what formula you want to add.