Controlling negative inventory for preorders

New Member
2 0 1

Hi all,

We have inventory in the way in a few weeks but I would like to give customers the option to pre-order these items. I have to set up preorders by enabling the setting that allows products to be purchased even though we don’t have inventory.

However, we’ll only be receiving certain amounts of each product, so I would like to know if there is a way I can limit the number of orders that can be made when an item is technically out of stock.  That way I won’t have to monitor each item to make sure that we receive more orders than we can fulfil. 

I have looked at a few other posts and some suggest inserting a negative number in the ‘available quantity’ section under inventory. Can anyone confirm that this actually works? Is there a simpler way? 

Alternatively is there a way I can code the limit in? I am using the Narrative theme. 

Shopify Partner
158 2 8


The easiest way would be to add "PREORDER" into titles and descriptions and then just set your inventory level to what you can sell. If you set the product to continue to sell when out of stock there is no way of managing inventory levels.



Over 16 years experience in operating ecommerce businesses.
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New Member
2 0 1

Hi Tom,

Thank you. I will go with that option. 

Hey @starsalight,

If you don't want to manually monitor each item, you can use our app; Mercbees Low Stock Alert.

You can create alerts for your items to get a notification when your item's inventory level has a specific value. You can get a notification by email or Slack.

If you want to try our app and have any questions, please do not hesitate to contact us at

Co-Founder / Developer at: merchbees
Merchbees Low Stock Alert - Keep track of your low stock items by email and slack
Merchbees Inventory Value - Know your inventory value and quantity in real-time
Push Down & Hide Out of Stock - Move out of stock products to the bottom of the collection to improve SEO & hide/ unhide automatically