Knowledgebase: Miva Merchant FAQ
Inventory Kit Builder in WOMBAT Production Release 7
Posted by Rafael Buelna on 24 June 2010 12:00 PM
Example from our Forum Post on Inventory Kit Builder feature in WOMBAT/Production Release 7.

The Inventory Kit Builder is for when you would like to track many individual parts inventory and allow them to be properly deducted from various master products.

For example, you're offering a Build Your Own Computer Kit which has multiple pieces that make up the Kit, such as Motherboard, CPU, Monitor, Video Card, Printer, Keyboard, Mouse, Case, etc...

Instead of having to segment those parts out of inventory just for this product, you can track all of the discrete pieces as individual "parts".

First, make sure all of your parts are entered as Products in the admin, if you don't want to sell a part as an individual product just uncheck the Active box on the main screen of the product.

Second, turn on Inventory for those parts and update the inventory levels to reflect your parts on hand.

Third, build your kit as a unique Active Product (here's my test kit: and create Attributes for all of the options within the Kit (in this case CPU, Monitor, Keyboard and Mouse) and make sure you check the I inventory flag on the attributes when you're setting them up.

Fourth, once your attributes are setup, go to the Inventory Kit Builder Tab and associate each attribute with the Part(s) and Quantity(s) for each choice. For example, I have a product called P42 that is inactive but keeping my inventory on my Pentium 4 CPU's in my test kit, and I click on the Attribute Code on the Inventory Kit Builder Page and associate 1 P42 Product to that attribute. This way when someone chooses that attribute and adds it to their cart, it will remove 1 P42 from inventory. If I had set it to 5 P42's (say I'm selling cases of them) it would deduct appropriately. In addition you can add multiple parts to an attribute.

Fifth, on the Inventory Kit Builder page once you've associated all of your parts, click the Generate Variants button.

Finally if any combinations of Variants aren't allowed together (for example no Pentium 4's with 30" monitors) then you can go to the Inventory Variants screen and delete those combinations you don't allow. This will remove those choices from the Master Product.
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