Diagnosis
You have changed variable-size part data. As a result of this change,the variable-size part quantity need to be recalculated.
However the variable-size part quantity is only recalculated if thequantity already entered is deleted (field = initial). This is to avoidany manual changes to the variable-size part quantity being lost.

Procedure
If you want the variable-size part to be recalculated, enter "!" at thebeginning of the field Var-size part qty.