How the availability check is carried out is influenced by various factors. Among other things, these factors also determine the scope of the check. The scope of the check can be defined differently in the sales documents and in the deliveries. You can also specify whether the availability check takes replenishment lead time into account.
For further information on working with the availability check, see
Types of Availability Check in Sales and Distribution Processing Controlling the Availability Check in Sales and Distribution Processing Timing of the Availability Check in Sales and Distribution Processing Scope of the Availability Check in Sales and Distribution Processing Reactions to the Availability Check in Sales and Distribution ProcessingFor further information on the availability check, see
Availability Check in Shipping