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Settings → Channels. Channels that are on also appear as tabs on your storefront sign-up form, so switching one on is also how you offer it to shoppers.
Settings → Channels with Email, Web push, SMS and WhatsApp, each with a short description and an on/off switch.

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The four channels

WhatsApp alerts aren’t being sent yet. You can switch the channel on and shoppers can choose it, but restock messages over WhatsApp don’t go out while pricing is being finalised — the app shows it as Coming soon. Until then, keep shoppers on email, web push or SMS.
At least one channel stays on — the app won’t let you switch off the last one (At least one notification channel must be active.). Which channels you can use also depends on your plan; a channel your plan doesn’t include is saved as off with the message Saved. Not included on your plan, so left off: followed by its name.

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Email and web push

Switch them on and they are live. Email sends through Notifylyst’s mail servers by default, so there is nothing to configure — to send from your own server, see Email sending and sender. Web push also needs the shopper to allow notifications in their browser when they sign up, which only happens on your live HTTPS storefront.
Email and web push share one allowance. Turning both on doesn’t double your capacity — it gives you two ways to reach waiting shoppers out of the same pool.

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SMS and WhatsApp

These are paid, per-message channels, so each needs a one-time review before it can send:
  1. Press Request activation on the channel in Settings → Channels, or in its message editor under Appearance → Notifications. You see SMS activation request sent. Switching the channel on before approval is saved as off: Needs activation approval first, so left off: followed by its name.
  2. The Notifylyst team reviews it. Until then the channel’s editor is locked and shows SMS activation required (or the WhatsApp equivalent).
  3. Once approved, you can write the messages and the channel sends.
The channel’s status shows as one of: Message wording for these channels can also need approval: the editor shows Changes pending approval until it is approved, or Changes rejected with the reason. Sending countries. In each SMS or WhatsApp message editor, SMS sending countries (or WhatsApp sending countries) limits which countries shoppers can pick a phone number from on the form. The default is the United States. Prices for each country are under Usage → Usage history → See rates.
The WhatsApp message editor under Appearance → Notifications: WhatsApp sending countries, the four notification steps, the message with its variables and estimated cost, and a phone preview.
Before you rely on SMS, add money to your wallet — no public plan includes SMS credit: Billing and credits. While the wallet is empty, Home shows SMS alerts are paused, and SMS alerts wait until you top up.

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Choosing which to run

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Switching a channel off

A channel switched off stops sending at once, disappears from the storefront form, and refuses new sign-ups for it. Shoppers already signed up on that channel stay signed up — switch it back on and they are alerted on the next restock.

Email sending and sender

Next: who your emails come from.

Plan features

Which channels each plan includes.