How do back-in-stock emails work?

The trigger is inventory, not a mailing schedule. When a product variant comes back in stock and meets your restock threshold, Simple Chat emails everyone who subscribed to that variant, automatically. That covers subscribers from the product-page notify-me control and from chat alike; nobody exports a list, nobody presses send.

Subscriptions are per variant

The waitlist is tied to the exact variant the customer wanted. Subscribers waiting on one size or color hear about that one; people who asked about a different SKU aren't mixed into the send. Each email matches what the shopper actually tried to buy, so alerts stay useful instead of turning into list noise.

What you control in settings

• Email template: the body content customers see.
• Subject line: how the message reads in the inbox.
• Restock threshold: how much inventory counts as back in stock before notifications go out.
• Storefront snippet: a notify-me control that registers the selected variant from the product page without opening chat.

The threshold is worth a moment's thought, since it decides how conservatively "in stock" is treated before a waitlist hears about it.

The full path, signup to inbox

1. A customer hits an out-of-stock product and opts in from the product-page notify-me control, or asks in chat, typing their email or having it auto-detected if they're logged in.
2. Simple Chat records the subscription for that variant.
3. When the variant meets your restock rules, every subscriber for it gets the email automatically.

From signup to send, none of it lands on your support team's plate, and all of it stays adjustable in settings.