How to tell shoppers when an item is back in stock on Square Online

Last updated: 21 October 2026

When a popular item sells out, some shoppers would buy it the day it comes back, if only they knew. Square Online does not have a "notify me when it's back" button: Square's own moderators have said it is not available, and the feature request is still open in the Seller Community. Here are the options you do have.

Option 1: Take preorders instead

Square Online can sell an item as a preorder with a pickup or delivery date from 24 hours to 365 days ahead, and a cutoff date. The shopper pays now and gets the item later.

Needs Square Online Plus or Premium.
Works for pickup and local delivery. Square's help and moderators describe it for pickup and delivery, not shipping.
Best when you know the date the stock arrives, for example seasonal bakes or a confirmed delivery.

If you don't know when the item will be back, a preorder promises a date you may not keep.

Option 2: Ask shoppers to email you

Add a line to the item description, such as "Sold out. Email us and we'll tell you when it's back." Keep a list and email each person when you restock.

Free and works on any plan.
Hard to keep up: you have to remember who asked for which item and size, write to each one, and delete the list afterwards.
The first people to ask should hear first, and that is easy to get wrong by hand.

Option 3: Announce restocks to your list or social followers

A restock post or newsletter reaches people who already follow you. It does not reach the shopper who found the item through search and left. Only email people who agreed to marketing email from you.

Option 4: An automatic "Notify me" button

RestockChime adds an "Email me when it's back" button to sold-out product pages on your Square Online site, through Square's own add-on system (no code to paste, works on the free plan). When stock comes back in Square, each shopper who asked gets one email with a link to buy, oldest request first. Your dashboard shows which items have the most people waiting.

See how it works

Whatever you choose: a good restock alert

Asked for: only email people who asked about that item.
Sent once, when the item can really be bought again, not when stock is "on the way".
Specific: the item and option they wanted, a photo and a direct link to the page.
From your shop's name, with replies going to you.
Easy to stop: an unsubscribe link, and their address deleted once it has been used.
Fast: restocks of popular items can sell out again within hours.