Notifications and alerts
The app can email you when something needs attention, so you are not relying on a customer telling you their confirmation never arrived.
Where to find the settings
Open Settings and pick the Notifications tab. The bell icon on the Dashboard's Events card opens the same settings.
The four alerts
| Alert | Default | What it does |
|---|---|---|
| Email sender stops working | On | Emails you when a sender can no longer send, and tells you the fix |
| Quota warning | On, at 80% | Emails you when plan usage crosses your chosen threshold |
| Quota exceeded | On | Emails you when usage hits 100% and actions start being blocked |
| High failure rate | Off | Emails you when an unusual share of actions fail in a short window |
Email sender stops working
Fires the first time an email fails because of the sender itself, so you hear about it before a day of missing emails. The email names the sender and the exact step to fix it:
| Cause | What to do |
|---|---|
| Google or Microsoft 365 no longer lets the app renew its access (access removed, password change, admin block) | Reconnect the account under Email Senders. The dashboard also shows a Reconnect required banner. Normal token expiry is renewed automatically and never triggers this |
| SMTP username or password rejected | Check the credentials and run Test Connection |
| Your mail server blocks our sending server | Ask your email host to allow the IP address named in the email |
| An email address was entered as the SMTP host | Enter the server name, such as smtp.example.com |
| Port and encryption do not match | Use port 465 with SSL or 587 with STARTTLS |
| Gmail is not enabled for the Google account | Enable Gmail for that user, or connect another account |
| Microsoft paused sending for the mailbox | Sign in to the mailbox and follow Microsoft's instructions |
Test Connection and the test send show the same fix next to the error. If no recipient is set up, the alert goes to the mailbox that stopped working.
Quota warning
The threshold slider runs from 50% to 99% in steps of 5. Set it lower if a month of blocked sends would hurt, higher if you would rather not hear about it until it matters.
Quota exceeded
Fires when you hit the limit and Flow actions begin failing. Worth leaving on regardless of plan.
High failure rate
Off by default, because a sensible threshold depends on your volume. Three settings:
| Setting | Range | Default |
|---|---|---|
| Failure threshold | 5-75% | 20% |
| Window (minutes) | 5-1440 | 60 |
| Minimum volume | 1 and up | 50 |
The minimum volume suppresses noise: without it, one failure out of two actions on a quiet morning reads as a 50% failure rate. Set it to roughly the number of actions a normal window carries.
Broken logins and sender setup errors already have their own alert above. This one catches everything else, such as a mail server that stops answering or an API you call through an HTTP request that starts rejecting it, so it is worth turning on once you are sending regularly. Marketing emails that were skipped because the recipient unsubscribed are not failures and never count here.
Recipients
The shop owner email - the address Shopify has verified for your store - is included by default. You can turn it off if alerts should only go to specific people.
You can add up to 2 additional recipients. Each has to confirm:
- Enter the address and click Send confirmation.
- They receive an email with a confirmation link, valid for 7 days.
- Once clicked, the recipient shows as Confirmed.
Until then they show Pending confirmation, and you can Resend or Remove.
Every alert email carries its own unsubscribe link, per recipient. Unsubscribing removes that recipient, or turns off the shop owner email if it matches.
How often they fire
Alerts are deduplicated so a problem does not flood your inbox:
- Quota alerts: once per month per plan limit.
- Failure-rate alerts: once per 6-hour window.
- Sender alerts: once per day per sender.
Related
- Settings - the other tabs of the Settings page.
- Sending health - the dashboard card that lists sender problems, broken links and the failure rate.
- Plans and usage - what the quota is measured against.
- History and troubleshooting - investigating the failures an alert reports.

