Diagnosis
You are attempting to calculate variances for an order. However, youhave not entered a variance key for thisorder. The variance key determines such things as whether scrap costsare reported separately when the variances are calculated.

Procedure
You enter the variance key in the costing view of the material masterrecord. It then appears as a default value in the orders created forthe material.

• To enter the variance key for a production
order or process order, access the orderand choose Header -> Master data.

• To enter the variance key for orders whose costs are collected on a
product cost collector, access themaster data of the product cost collector in the change mode.
To ensure that the variance key always appears as a default in thecosting view, you can go into Customizing and enter it as a defaultvalue separately for each plant.
If you have already created the material masters and want to transferthe variance key defined as a default value for each plant, run reportSAPMKKS1.
Proceed