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Assemble to Order or Assemble to Stock

Microsoft Dynamics NAV 2013

Assembly items can be supplied in the following two processes:

  • Assemble to order.

  • Assemble to stock.

Assemble to Order

You typically use assemble to order for items that you do not want to stock because you expect to customize them to customer requests or because you want to minimize the inventory carrying cost. The supporting functionality includes:

  • Ability to customize assembly items when taking a sales order.

  • Overview of availability of the assembly item and its components.

  • Ability to reserve assembly components immediately to guarantee order fulfillment.

  • Function to determine profitability of the customized order by rolling up price and cost.

  • Integration to the warehouse to make assembly and shipping easier.

  • Ability to assemble to order at the point of making a sales quote or a blanket sales order.

  • Ability to combine inventory quantities with assemble-to-order quantities.

In the assemble-to-order process, the item is assembled in response to a sales order and with a one-to-one link between the assembly order and the sales order.

When you enter an assemble-to-order item on a sales line, an assembly order is automatically created with a header that is based on the sales line and with lines that are based on the item’s assembly BOM multiplied by the order quantity. You can use the Assemble-to-Order Lines window to see the linked assembly order lines to support you in customizing the assembly item and in a delivery date that is based on component availability information. For more information, see How to: Sell Items Assembled to Order.

Hh168122.note(en-us,NAV.70).gifNote
Although it is not part of the default process, you can sell inventory quantities with the assemble-to-order quantities. For more information, see How to: Sell Inventory Quantities in Assemble-to-Order Flows.

To enable this process, the Assembly Policy field on the item card must be Assemble-to-Order.

Assemble to Stock

You typically use assemble to stock for items that you want to assemble ahead of sales, such as to prepare for a kit campaign, and keep in stock until they are ordered. These items are usually standard items such as packaged kits that you do not offer to customize to customer requests.

In the assemble-to-stock process, the item is assembled without an immediate sales demand and is stocked in the warehouse as an inventory item for later sale or consumption as a subassembly. For more information, see How to: Assemble Items. From this point, the item is picked and processed as a single item and is treated like a finished production item.

When you enter an assemble-to-stock item on a sales line, the line like any other item sold from inventory. For example, availability is checked for the assembly item only.

Hh168122.note(en-us,NAV.70).gifNote
Although it is not part of the default process, you can assemble an item to order even if it is set up to be assembled to stock. For more information, see How to: Sell Assemble-to-Order Items Along with Inventory Quantities.

To enable this process, the Assembly Policy field on the item card must be Assemble-to-Stock.

Combination Scenarios

A general principle in Assembly Management is that when combined on a sales order line, assemble-to-order quantities must be shipped before inventory quantities.

If an assembly order is linked to a sales order line, then the value in the Qty. to Assemble to Order field on the sales order line is copied to the Quantity to Assemble field, via the Quantity field on the assembly order header. For more information, see How to: Sell Items Assembled to Order.

In addition, the value in the Quantity to Assemble field is related to the Qty. to Ship field on the sales order line, and this relation manages the shipping of assemble-to-order quantities, both partially and completely. This is true both when the full sales line quantity is assembled to order and in combination scenarios where one part of the sales line quantity is assembled to order and another part is shipped from inventory. However, in the combination scenario, you have additional flexibility when shipping partially in that you can modify the Quantity to Assemble field, within predefined rules, to specify how many units to ship partially from inventory and how many to ship partially by assembling to order.

If the full sales line quantity must be assembled to order and shipped, then the value in the Qty. to Ship field is copied to Quantity to Assemble field on the linked assembly order when you change the quantity to ship. This ensures that the quantity being shipped is fully supplied by the assemble-to-order quantity.

However, in combination scenarios, the full value in the Qty. to Ship is not copied to the Quantity to Assemble field on the assembly order header. Instead, a default value is inserted in the Quantity to Assemble field that is calculated from the Qty. to Ship field according to a predefined rule that ensures shipment of assemble-to-order quantities first.

If you want to deviate from this default, for example because you only want to assemble more or less of the quantity in the Qty. to Ship field, then you can modify the Quantity to Assemble field, but only within predefined rules, as illustrated below

An example why you would want to modify the quantity to assemble is that you want to partially post shipment of inventory quantities before the assembly output can be shipped.

The following explains the rules that define the minimum and maximum values that you can enter manually in the Quantity to Assemble to deviate from the default value in a combination scenario. The table shows a combination scenario where the Qty. to Ship field on the linked sales order line is changed from 7 to 4, and the Quantity to Assemble is therefore defaulted to 4.

Sales order line Assembly order header

Quantity

Qty. to Ship

Qty. to Assemble to Order

Quantity Shipped

Quantity

Quantity to Assemble

Assembled Quantity

Remaining Quantity

Initial

10

7

7

0

7

7

0

7

Change

4

4 (inserted by default)

Based on the above situation, you can only modify the Quantity to Assemble field as follows:

  • The minimum quantity that you can enter is 1. This is because you must at least assemble one unit to be able to sell the four units, assuming that the remaining three are available in the inventory.

  • The maximum quantity that you can enter is 4. This is to ensure that you do not assemble more of this assemble-to-order item than what is needed on the sale.

For more information, see also the Quantity to Assemble field on assembly order headers.

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