The same control elements are used for carrying out the availability check in deliveries as in the availability check in sales documents. The availability check in deliveries is dependent upon the requirements class which itself is linked to the requirements type of the material. In addition, delivery item categories can be used to control whether an availability check is performed in deliveries.

An availability check can only be carried out if the following prerequisites have been fulfilled:

• Control elements for the availability check must be maintained in Customizing and appropriately assigned to the sales and distribution transactions

• The availability check and the transfer of requirements must be switched on at requirements class level and may not be deactvated at item level.

• A plant must be defined at document item level

• A checking group must be defined in the material master record on the Sales/plant data screen in the Availability check field