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Quick answers to the questions merchants ask most. Each links to the full guide.

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Pre-order

Set an Oversell limit on the variant. Bloom stops accepting pre-orders once that many are placed, so inventory only goes as far negative as you allow. See Configure a pre-order product.
No. Bloom charges the full price at checkout - it doesn’t take deposits, split payments, or charge-later. The pre-order is a normal Shopify order, paid in full now.
Yes. Leave Shopify’s split shipping off and the whole order ships together once every item is ready. Turn it on and in-stock items ship now while pre-order items follow. See Split orders.
Change the ship date or cart message in Bloom. With Klaviyo connected, Bloom sends a Pre-order Ship Date Updated event for each open pre-order - build a Klaviyo flow on it to email customers. A cart message change also updates the order note and the customer’s order status page. See Updating pre-order info on existing orders.
Not by default - Shopify blocks gift cards and store credit on any checkout carrying a pre-order purchase option, even one paid in full. Turn off Enable purchase option at checkout in Pre-order settings to sell pre-orders as back orders instead - gift cards and store credit then work. You lose Shopify’s native Pre-order label at checkout, but tagging, holds, cart labels, order notes and emails are unaffected.
Yes. When inventory goes back above zero, the variant sells normally again - no need to disable anything. See the Pre-order overview.

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Notify Me

Yes. When the variant restocks, Klaviyo triggers your back-in-stock flow and sends the alerts. You control the timing and channels in the flow. See Set up the back-in-stock flow.
Yes - sign-ups are stored in Klaviyo, not in Bloom, as back-in-stock subscriptions. See Connect Klaviyo and Notify Me sign-ups in Klaviyo.
Yes. Klaviyo sends both - you pick the channels in your flow. SMS only reaches subscribers in Klaviyo’s supported countries. See Notify Me overview.
Notify Me sends nothing until you’ve created the back-in-stock flow. Sign-ups are captured when you Connect Klaviyo.

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General

Pre-order sells a variant before stock arrives - the customer pays now. Notify Me captures interest on a sold-out variant and emails the shopper when it returns - no sale until then. See the Pre-order and Notify Me overviews.
Both. The Pre-order button shows, with a Notify me when available button below it. To show pre-order only, turn Notify Me off for that variant.
No. Notify Me only captures interest - it doesn’t hold stock, and signing up doesn’t guarantee the shopper gets one. To let customers buy ahead of stock, use pre-order instead.
Bloom puts back on pre-order the products it switched off when you uninstalled, and a Pre-order restored banner confirms how many. Anything you set up since reinstalling isn’t overwritten. A one-time Welcome back banner asks whether to Keep settings or Clear settings for your previous designs, content and settings. Clearing cancels the pre-order restore. Product settings, analytics, billing and order history are kept either way.
Plans cap pre-orders and Notify Me sign-ups each billing period, from 10 pre-orders on Hibernate (0)tounlimitedonEnterprise.GooveracapandBloompausesonyourstorefrontuntilyouupgrade−there′snooveragebilling.0) to unlimited on Enterprise. Go over a cap and Bloom pauses on your storefront until you upgrade - there's no overage billing. 0 exchanges and replacements don’t count. See Plans and billing.
Yes. Ask Sidekick in Shopify admin about pre-order, Notify Me and out-of-stock performance, top products, your Bloom settings, or why a variant can’t be pre-ordered. See Ask Sidekick about Bloom.