Purchase Module ############### The purchase module defines the Purchase model. Purchase ******** The purchase is mainly defined by a party from which the products will be purchased and a list of purchase lines, each one containing a product and a quantity. Here is the extensive list of the fields, most of them are optional or completed with sensible default values: - Party: The supplier. - Invoice Address: The invoice address of the supplier. - Supplier Reference: Allow to keep track of the supplier reference for this order. - Description: An optional description for the order. - Number: The internal reference of the purchase (will be generated automatically on confirmation). - Reference: The optional external reference of the order. - Purchase Date: The date the purchase is made. - Payment Term: Define which payment term will be use for the future invoice. - Warehouse: Define the warehouse where the shipment will be made. - Currency: define the currency to use for this purchase. All product prices will be computed accordingly. - Purchase Lines: - Type: The type of the line. The default value is *Line* which means that the current purchase line contains the fields defined hereunder. The other values of Type (*Comment*, *Subtotal*, *Title*) are used to add extra lines that will appear on the report, thus allowing to easily customise it. - Sequence: Allow to order lines. The value of this field is also updated with a drag and drop between the lines. - Product: An optional reference to the product to purchase. - Description: The description of the product to purchase. - Quantity: The quantity to purchase. - Unit: The unit of measure in which is expressed the quantity. - Unit Price: The unit price of the product expressed in the currency of the purchase. - Amount: The amount of the current line (Unit Price multiplied by Quantity). - Delivery Date: The computed date at which the product is expected to be delivered. - Taxes: The list of taxes that will be applied to the current line. - Invoice State: The state of the invoice related to the purchase. - Shipment State: The state of the shipment related to the purchase. - Untaxed: The untaxed amount. - Tax: The tax amount. - Total: The total amount. - State: The state of the purchase. May take one of the following values: Draft, Quotation, Confirmed, Cancelled. - Company: The company which issue the purchase order. - Invoice Method: May take one of the following values: - Base on order: The invoice is created when the purchase order is confirmed. - Base on shipment: The invoice is created when the shipment is received and will contains the shipped quantities. If there are several shipments for the same purchase, several invoices will be created. - Manual: Tryton doesn't create any invoice automatically. - Comments: A text fields to add custom comments. - Invoices: The list of related invoices. - Moves: The list of related stock moves. - Shipments: The list of related shipments. - Return Shipments: The list of the related shipment returns. If a Supplier Return location is defined on warehouse it will be used on return shipments as origin location. Otherwise the warehouse storage location will be used. The *Purchase* report allow to print the purchase orders or to send them by mail.