Some actions in Flowella require an active subscription. If you see “Subscription required”, aDocumentation Index
Fetch the complete documentation index at: https://knowledge.flowella.io/llms.txt
Use this file to discover all available pages before exploring further.
402 error from the API, or buttons that are greyed out with a billing tooltip, this page explains what’s locked and how to unlock it.
For the full subscription model, see Billing.
What gets locked
When a subscription becomes past due or cancelled (and the paid period has ended), the following are blocked:- Sending new WhatsApp messages from the inbox
- Sending templates from HubSpot workflows
- Bulk template sends via the API (
POST /api/v1/templates/send) - Publishing or syncing new WhatsApp Flows
- Submitting new templates to Meta
- Adding new channels or phone numbers
- Signing in
- Viewing existing data — contacts, conversations, opt-outs, analytics, templates
- The Billing page
- Inbound message receipt (incoming WhatsApp messages still arrive in your inbox; you just can’t reply until billing is fixed)
Subscription states that lock actions
| State | What’s happening | What you’ll see |
|---|---|---|
| Past due | A card payment failed and Stripe is retrying | Yellow banner on every page; some actions blocked |
| Canceled (in grace) | Subscription is cancelled but paid period hasn’t ended | Yellow banner; full access until the period ends |
| Canceled (expired) | Paid period has ended | Red banner; paid actions blocked |
| Trialing | Paid plan in free-trial period | Full access; no banner |
| Active | Paid plan in good standing | Full access; no banner |
How to restore access
Only the Owner of the org can change billing.Update payment or pick a plan
- For past due, update the failing card.
- For expired, pick a plan and complete checkout.
API behaviour
The REST API returns a402 Payment Required response with this envelope when an action is blocked by billing:
402 as a recoverable state — surface it to the org Owner so they can fix billing rather than retrying automatically.
Common confusion
”I just paid — why is it still locked?”
Stripe webhooks are usually instant, but very rarely take a minute or two. If the banner persists for more than five minutes after a successful payment, refresh the page or click Manage subscription to confirm the status in Stripe.”Why can my teammate still send messages?”
They can’t — but if the action is queued client-side, the UI may show success momentarily before the server rejects it. Send attempts will land in the inbox as Failed with a billing reason.”We paid but a specific feature is still locked”
Check that your plan tier includes that feature. See Plans and limits. For example, the Free plan does not include the public REST API.Still locked after paying?
Capture:- A screenshot of Settings → Billing showing the current state
- The Stripe receipt or invoice ID for the most recent payment

