When an invoice is entered referencing an order item for which the quantity delivered is zero, the invoice was previously blocked due to quantity variance. This was the case independently of how the quantity variance check (tolerance key DQ) was configured.
As of Release 4.0, a new tolerance key exists called DW. If an invoice is entered with a quantity of zero, the system now compares the quantity with the settings made for this key.
Configure the tolerance limits for the tolerance key DW.