Abstract: Techniques are provided for checking product availability from various suppliers so that purchase orders may be automatically generated upon a determination that all desired products are available. In accordance with one embodiment, a “customer” program converts the business objects that create the product demand for the desired products into various supply assurance requests. The customer program then sends each of the supply assurance requests to a respective supplier to query the product availability. After sending the supply assurance requests, the customer program waits until it receives all of the supply assurance replies corresponding to the supply assurance requests. If the supply assurance replies indicate that all the desired products can be provided by the supplier, then the customer program generates one purchase order to each of the suppliers that received a supply assurance request, to place orders for the desired products.