From an Outlet, you can place 3 types of orders.
1. Regular: one-time order that is sent to the Supplier as soon as it is submitted. These could be ad-hoc orders.
2. Standing: recurring orders that will be created automatically in set time intervals. This could be used for ordering of products that you require to purchase regularly.
3. Scheduled: one-time order that will be sent to the Suppliers on a set future date.
Find out how to make changes to standing orders/scheduled orders here.