Stock reserved for a sales order

Confirming a sales order reserves its stock line by line. Cancelling the order gives the stock back, and goods issue uses the reservation up.

• On confirm, each stock line reserves what is free in its warehouse (on hand less what is already promised to other orders). The answer says what was reserved.
• If there is not enough free stock, the order is still confirmed and the shortfall is named. That part is not promised until stock arrives.
• Cancelling a confirmed order releases its reservations. Production orders made for the sales order keep theirs.
• Posting goods issue on a delivery uses up the order's reservation before the stock leaves.

The credit check already ran when an order was confirmed. That is unchanged.