Validity of the Block
In the case of quantity, price, and schedule variances, the invoice may still be blocked although the blocking reason is no longer valid (see the following examples). The system does not automatically release the invoice. Every blocked invoice remains blocked until you release it in a separate step.
Quantity variance
For a purchase order for 100 pieces, 80 pieces are delivered and 100 pieces are invoiced. The invoice is entered and blocked for payment. The next day, the remaining 20 pieces are delivered. The blocking reason is, therefore, no longer valid. However, you must first release the invoice before it can be paid.
Schedule variance
The goods receipt and invoice receipt for a purchase order both take place on the first of the month, although the delivery date was planned for the 25th of the month. The invoice is blocked for payment. On 25th of the month the blocking reason is no longer valid. However, you must first release the invoice before it can be paid.
Price variance
An invoice is blocked due to price variance. After consulting the vendor, the buyer changes the order price. The blocking reason is no longer valid. However, you must first release the invoice before it can be paid.
Quality inspection
An invoice is blocked due to quality inspection. If the result of the inspection is positive, the inspection process is complete. The blocking reason is no longer valid. However, you must first release the invoice before it can be paid.