A Blanket Order is a purchase order which a customer places with its supplier to allow multiple delivery dates over a period of time, often negotiated to take advantage of predetermined pricing. Discounts and offers can also be included inside the purchase agreement since they are for regular customers. In the case of certain organizations, the user can set up festive or seasonal discounts and offers as the agreement and use it for various customers throughout the period. Considering the sales in Odoo it has the ability to generate quotation templates for various customers.