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How to Turn Out-of-Stock Products into Pre-Orders (Pro)

An out-of-stock page is a dead end. This rule turns every one of them into a reservation instead, and it works on products you never set up by hand.

Go to Configuration → General and find Release Automation.

The Release Automation section

The Auto Pre-Order Out Of Stock field

Auto Pre-Order Out Of Stock, off by default.

Automatic Release Window, default 30 days, range 1 to 365. Every automatically created pre-order gets a release date this many days from the day it was converted.

Pick your realistic restock time. It is a placeholder date, and customers will read it as a promise, so 30 days on a product you restock in 90 buys you a month of complaints.

The window has no effect on products you set up yourself.

Press Save Changes.

It runs on the hourly job, and it also reacts the moment a product’s stock status changes, so a product that sells out mid-afternoon is usually converted straight away.

Each converted product gets:

  • Full payment, priced at the product’s own price.
  • A release date of today plus your window.
  • A countdown, shown.
  • Its stock swapped so the product is buyable again, with the original state stored for release day.

Here is one, made by marking a $16.00 Cap out of stock with the rule on and a 30-day window.

The pre-order row the rule created for a product that sold out

Read the row across and every part of the rule is visible: the price and the original price match, because there is no deposit; Payment: Complete; a release date 30 days out; and In Stock, even though the product is the one that just sold out. That last column is the stock swap, and it is what puts the product back on sale as a reservation.

Three limits, and the first is the important one.

  • A product that already has pre-order settings is never changed. Anything you configured by hand is safe, including one you deliberately set to Inactive.
  • Only simple products and variations, and only ones that are purchasable.
  • Only published products.

Converted products appear alongside your own.

The pre-order products list

Filter to Not Available and Active to see everything currently taking reservations, then sort by release date.

Treat the automatic date as a first draft. The rule cannot know your supplier’s lead time, so the job is to go through the converted products and give the ones that matter a real date. Changing a date emails the customers who already reserved, which is exactly what you want here.

The availability date field

Unticking the rule stops new conversions. It does not undo the ones already made, because those are now ordinary pre-order products with customers attached.

To undo one, delete its pre-order settings from the products list. The product’s stock stays where the pre-order left it, so set that back yourself.

  • A discontinued catalogue: You will be taking reservations for things that are never coming back.
  • Made-to-order products that are always technically out of stock.
  • A store with no restock plan. A date you cannot meet is worse than an out-of-stock page.