In the MRP process, procurements orders are created to launch manufacturing orders, purchase orders, stock allocations. Procurement orders are generated automatically by the system and unless there is a problem, the user will not be notified. In case of problems, the system will raise some procurement exceptions to inform the user about blocking problems that need to be resolved manually (like, missing BoM structure or missing supplier).
The procurement order will schedule a proposal for automatic procurement for the product which needs replenishment. This procurement will start a task, either a purchase order form for the supplier, or a production order depending on the product’s configuration.