Whole app
| Message | Why | Fix |
|---|---|---|
| Choose a plan to get started | Your store has no active plan. | Choose a plan on Shopify, approve it. If you already did: Already chose a plan? Reload. |
| Not included on your plan (with View plans) | The page needs a feature your plan doesn’t include. | Change plan. |
| Feature name is not included on your current plan. | Same, for a single action. | Change plan. |
| Your app has been frozen | Your store’s alerts were paused by Notifylyst support. The storefront widget is off too. | Contact support with the button on that screen. |
Settings
| Message | Why | Fix |
|---|---|---|
| At least one notification channel must be active. | You switched off every channel. | Keep one on. |
| Saved. Not included on your plan, so left off: … | That channel isn’t on your plan. | Change plan. |
| Needs activation approval first, so left off: … | SMS or WhatsApp isn’t approved yet. | Request activation and wait for the review. |
| Location filtering isn’t on your plan. You can still switch it off. / Multi-Location Inventory is not included on your current plan. | Location filtering needs Multi-Location Inventory. | Change plan, or switch the filter off. |
| SMTP host must be a public internet address. | Internal or private host. | Use your provider’s public host name. |
| SMTP port must be a number between 1 and 65535 (usually 587 or 465). | Port not valid. | Correct it. |
| Sender email must be a valid email address. | Send from not valid. | Correct it. |
| Enter an SMTP host before enabling custom SMTP. | Host empty. | Fill it in. |
| Custom report period must be between 1 and 365 days. | Days out of range. | 1–365. |
| Maximum alerts per day must be a whole number from 1 to 10,000 — or leave it empty for no limit. | Daily limit not valid. | Correct it or leave it empty. |
| Add at least one email address under Deliver To. | Send a report now with no recipient. | Add a recipient. |
| Enable Summary Reports or Customer Reports first — there is nothing to send. | Send a report now with both reports off. | Switch one on. |
| Summary reports are not included on your plan. | Reports need Summary Reports. | Change plan. |
| URL must use HTTPS. / Invalid URL. / URL must not contain credentials. / URL must point to a public internet address. | Webhook URL not accepted. | Use a public https:// URL without a username or password. |
| Your plan includes N webhook endpoints. Upgrade to add more, or remove one first. | Endpoint limit reached. | Remove one, or change plan. |
| Your plan allows up to N tokens. Revoke one to create another. | AI connector token limit. | Revoke a token, or change plan. |
Import
| Message | Fix |
|---|---|
| That isn’t a CSV file… | Save the sheet as CSV and upload again. |
| That file is over 5 MB… / At most 5,000 rows per file… | Split the file. |
| The CSV needs a header row with at least variant_id and an email or phone column… | Add or rename the header row. |
| Rows skipped: variant does not exist in this store, SMS is not active on this store, already signed up and waiting for restock | Fix those rows, or leave them — the rest were imported. |
Appearance
| Message | Why | Fix |
|---|---|---|
| Button caption can’t be empty. / Font size must be between 10 and 32. … | A button setting is out of range. | Correct the field shown. |
| Nothing was saved: the form is X KB, over Shopify’s 117 KB limit… | The sign-up form, all languages together, is too big. | Shorten texts or remove custom fields. |
| Could not save to Shopify. Nothing was stored… | Shopify didn’t accept the save. | Try again. |
| Your saved form could not be loaded | The stored form couldn’t be read; saving is turned off to protect it. | Reload; contact support if it stays. |
| Email step N (language): the subject line is empty… | An enabled email step has no subject. | Add a subject or switch the step off. |
| These notifications were changed somewhere else… Nothing was saved. | Someone else saved first. | Reload and make your change again. |
| No notifications left this cycle to send a test. Top up or upgrade, then try again. | Test email with nothing left to send. | Top up or change plan. |
| Your SMS balance is empty, so the test could not be sent. Add credits and try again. | Test SMS with an empty wallet. | Top up. |
Analytics and exports
| Message | Fix |
|---|---|
| You’ve used all the notifications included this cycle, so this export can’t be emailed. Top up or upgrade, then run it again. | Top up, or wait for the next cycle. |
| CSV export is not included on your current plan. / This report is not included on your current plan. | Change plan. |
| This contact is already signed up for every product you selected. | Nothing to add. |
| Quantity must be a whole number between 1 and 9999. / The added time cannot be in the future. | Correct the Add sign-up form. |
| This product could not be loaded. | The product may have been deleted. Back to Analytics. |
Plans and top-ups
| Message | Fix |
|---|---|
| This store’s plan is managed by support. Please contact us to change it. | Email support. |
| That plan is no longer available. | Reload Plans and pick a current one. |
| Your plan is being activated… | Wait a moment, then reload. |
| You need an active plan before you can top up… | Choose a plan first. |
| Enter a whole dollar amount of $1 or more.** / **A single top-up can be at most $5,000… | Correct the amount. |
| Top-ups are temporarily unavailable… | Try later, or contact support. |
On the storefront
What shoppers can see, and why: A shopper gets a restock alert and A shopper manages their alerts. For the AI connector’s errors: MCP errors.FAQ
Common questions that aren’t an error message.
Uninstall and your data
Next: what uninstalling removes.