Update Delivery Date in PR after releasing credit limit block

Sales Order with third party items created on 01.06. Delivery date is next day 02.06. However, the Sales Order has a credit limit block. Block is released delayed on 02.06. The delivery date in the schedule lines is updated to 03.06. but the PR that has been created after delivery block release still has the 02.06. It looks like the PR is created after credit limit block release and recalculation happens afterwards without PR update.