Why it stops immediately
There is no grace period, and that is deliberate. A reply sent on your behalf is a promise made to a customer in your name. We are not willing to keep making those promises on an account we can no longer bill.
Stopping is also the honest failure: a bot that quietly keeps working while the bill goes unpaid ends with a much larger conversation later.
What is not affected
Your marketplace connections stay authorised — nothing needs reconnecting — and your settings, business profiles, and message rules are untouched.
Conversations already in progress stay in your dashboard in full, and you can still reply to customers yourself from the marketplace, as you did before us.
Getting running again
Update your card in Billing. Replies resume from that moment for new leads and for follow-ups still scheduled.
Messages that were skipped while the account was stopped are not sent afterwards. Those conversations moved on without us, and a reply arriving three days late reads worse than no reply at all.