> ## Documentation Index > Fetch the complete documentation index at: https://docs.callivox.com/llms.txt > Use this file to discover all available pages before exploring further. # Running low and running out > The warnings Callivox sends before your credits run out, what stops working at zero, and how to get running again. Callivox warns you before your credits run out, and tells you clearly when they have. Nothing is silently queued or lost — but AI work does stop, so it is worth knowing exactly what to expect. ## The warnings you get ### The low-credit email When your balance falls below **10% of your monthly allowance**, Callivox emails you. The subject line is **"Low credits — N credits remaining"**, and the email links straight to **Settings → Billing**. * It is sent **once per billing cycle**, so a low balance will not fill your inbox. * It is **not sent when auto-recharge is on** — there is nothing for you to do, because credits are bought for you automatically. * It is **not sent on plans with no monthly allowance** (the Free plan), and not to workspaces billed by an account manager. Turning on [auto-recharge](/billing/top-ups-and-auto-recharge) is the way to make this warning irrelevant. ### In the app The moment something is refused for lack of credits, everyone using the app sees it: * A toast appears: *"Insufficient credits — {available} available, {needed} needed. Top up \${amount} to continue."* with a **Top up** button that takes Admins to **Settings → Billing**. * A banner sits at the top of the app: *"Out of credits — top up to send more messages."* It clears by itself once your balance is above zero again. Members see the warning too, because it explains why their messages are not going out — but only Admins can act on it. Workspaces billed by an account manager see the warning without a **Top up** button, alongside the line **"Billing is managed by your account manager."** ## What stops when the balance hits zero | What | What happens | | ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Outbound messages** | The message is marked **Failed** in the conversation. It is not queued and not retried — you resend it after topping up. | | **AI replies** | The reply is skipped. A note is written into the conversation timeline so your agents can see in the inbox that the AI did not answer, and take over manually. The customer's message is still received and still in your inbox. | | **Knowledge-base documents** | Uploads are rejected and the document is marked as rejected for lack of credits. Nothing is indexed. Upload again after topping up. | | **Voice calls** | Calls are billed after they finish, so a call in progress is not cut off — but it can take your balance to zero and leave the workspace flagged as over quota. | | **Automations** | Unaffected by credits. They have their own quota — see below. | Two things worth stressing: * **Nothing is held for later.** There is no queue that drains once you top up. Failed messages stay failed until someone sends them again. * **Your inbox keeps working.** Inbound messages still arrive, and human replies are free, so your team can keep serving customers by hand while the balance is empty. Because AI replies are skipped rather than delayed, a workspace that runs out overnight can leave customers unanswered until someone notices. Auto-recharge, or a healthy rolled-over balance, is the protection against this. ### Check for held credits If your balance looks like it should be enough but work is still being refused, check **Held for in-flight** on the Credits card. Your spendable amount is **balance minus held**, and held credits are reserved for work already in progress. They release on their own. ## Automation runs are a separate quota Automation runs are **not** paid for with credits. Each plan includes a number of runs per billing period — 10,000 on Starter, 50,000 on Growth, 250,000 on Business, unlimited on Enterprise, none on Free. When the included runs are used up: * **New runs do not start** until the next billing period begins. * Runs already in progress finish normally. * Your credit balance is untouched, and everything else — inbox, AI replies, voice — keeps working. Unlike credits, unused automation runs do **not** roll over; the count resets each period. Check your usage under **Automations** — see [Runs and troubleshooting](/automations/runs-and-troubleshooting). If you are regularly running out, move up a plan. ## Overdraft, for account-managed workspaces Enterprise workspaces billed by an account manager can be given an agreed **overdraft**: an amount the balance is allowed to go below zero before metering stops. This keeps service running while an invoice is settled. * Within the overdraft, AI work continues and the balance shows as negative. * Once the overdraft is used up, the same stops described above apply. * Your account manager is alerted automatically as the overdraft is consumed, and when an outstanding balance approaches your agreed limit. Standard workspaces have no overdraft — they stop at zero. ## Getting running again **Settings → Billing → Top up credits**. Credits land as soon as the payment clears, and the banner clears itself. See [Top-ups and auto-recharge](/billing/top-ups-and-auto-recharge). Open the affected conversations and send the failed messages again. Nothing resends itself. Any knowledge-base document rejected for lack of credits has to be uploaded again. Turn on **auto-recharge**, or move to a plan whose monthly grant matches your real volume. If the spend is higher than you expected, check whether your busiest agents are on a higher effort level than they need — see [How credits are spent](/billing/how-credits-are-spent). If your subscription is past due or suspended, topping up will not restore service on its own — the banner on **Settings → Billing** tells you to update your payment method first. Use **Update card** or **Resolve** in that banner. ## Next steps Buy credits and set up automatic top-ups. Understand and reduce what your workspace consumes.