A. If you receive an out-of-stock notification after placing an order, check your order confirmation email for any updates or changes. If the item is crucial, consider reaching out to customer service for alternatives or to see if the item can be restocked soon.

B. To avoid this issue in the future, consider checking stock levels before placing an order and look for items that are marked as 'available' or 'in stock' to minimize the risk of this happening.