What Happens When You Reach the Appifire Reply Limit?

You will know what happens when you reach the Appifire reply limit (or run out of Pro credits), how to confirm it in Billing, and which next step to take. When you finish, chat can run again or you will know exactly what to wait for.

For what counts as a reply, see What Counts as an Appifire AI Reply?. For plan basics, see Appifire Billing and Credits Explained.

Direct answer

When the shop cannot spend another AI reply:

1. New storefront AI replies stop (the chat turn does not generate a normal assistant answer).
2. Open Appifire Billing to see whether you hit the Free monthly reply cap or an empty Pro credit wallet.
3. Free: upgrade to Pro ($20/month) or wait for the Free counter reset on UTC day 1.
4. Pro: use Buy Credits (packs shown in Billing) after the wallet is empty.
5. Confirm live numbers on Billing and pricing. Marketing Free allowance is 500 AI replies/month.

Prerequisites

• Access to Appifire admin → Billing
• Ability to complete Shopify’s plan or charge confirmation screens if you upgrade or buy credits
• Optional: note the UTC time when chat first failed

Step 1: Confirm chat is blocked by limits (not a widget bug)

Before you change plans, rule out a missing bubble:

1. Can you still open the chat widget on the storefront?
2. Does a new shopper message get a normal product/policy answer, an error/limit message, or nothing useful?
3. If the bubble is missing entirely, use Appifire Widget Not Showing first.
4. If the bubble works but answers stop after heavy use, continue here.

Expected result: You know this is a usage/billing block, not a theme embed issue.

Step 2: Read Billing (Free vs Pro)

Open Billing and note:

What you see	Likely limit type	What it means
Free plan + replies used at or above the monthly limit	Free reply cap	No more Free-path AI replies until upgrade or UTC month reset
Pro (paid) + credit balance at $0	Empty wallet	No more wallet-path AI replies until you buy credits or included credits refresh
Free plan + leftover USD balance still showing	Wallet leftover path	Chat may still work on leftover credits even after cancel; when balance hits 0, Free reply cap rules apply again
Pro active but “I paid and still blocked”	Plan/balance sync lag or wallet already 0	Refresh Billing; confirm Pro is active; buy credits if balance is 0

Expected result: One clear label: Free cap, empty wallet, or leftover-wallet edge case.

Step 3: What shoppers experience

When the limit is hit:

• The app does not generate a normal AI reply for new turns.
• Merchants should fix Billing rather than editing product text.
• Past chat history in Chats remains readable; reading logs does not use replies.

Exact on-screen shopper wording can change with releases. Treat “chat will not answer new AI questions” as the operational symptom, then fix Billing.

Expected result: You stop testing random catalog edits to “fix” a limit block.

Step 4: Unblock Free plan (reply cap)

If Billing shows Free and the monthly reply count is used up:

Option A: Upgrade to Pro

1. In Billing, start the upgrade / paid plan flow Shopify shows for Appifire.
2. Complete confirmation in Shopify.
3. Return to Billing and confirm plan is Pro.
4. Confirm included AI credits appear (amount on Billing / pricing).
5. Send one storefront test question.

Pro is $20/month. After upgrade, usage follows the credit wallet (variable cost per reply), not the Free monthly reply counter.

Option B: Wait for the monthly reset

1. Free reply use resets on UTC day 1 each month.
2. Compare your local clock to UTC before you say “reset failed.”
3. After UTC day 1, refresh Billing and confirm used replies returned toward zero.
4. Test one storefront question.

Do not expect to buy credit packs while you are Free with no active paid plan. Upgrade to Pro first, then buy packs if you need more capacity.

Expected result: Either Pro is active with a positive wallet path, or Free capacity is available again after UTC reset.

Step 5: Unblock Pro (empty credits)

If Billing shows Pro and the credit balance is 0:

1. On Billing, open Buy Credits.
2. Choose a pack size shown there (commonly amounts such as $10, $20, $50, $100, $200; confirm live options).
3. Complete Shopify’s one-time charge confirmation.
4. Refresh Billing and confirm the wallet balance increased.
5. Send one storefront test question.

Important: New credit packs require an active paid subscription. If you canceled Pro and only have leftover balance, you can spend leftovers until zero, but you cannot buy new packs until you subscribe again.

Expected result: Wallet balance is above zero and chat answers again.

Step 6: Verify success

Checklist:

• Billing plan matches what you expect (Free or Pro)
• Free: used replies are under the limit, or Pro: credit balance > 0
• One new storefront question gets a normal assistant reply
• You know whether next capacity comes from UTC reset, included monthly credits, or a top-up

Common failures and fixes

What you see	Likely cause	Fix
Chat dead, bubble missing	Theme / embed / visibility	Widget not showing
Free used = limit	Monthly Free cap	Upgrade or wait for UTC day 1
Pro balance $0	Wallet empty	Buy Credits on Pro
“I want packs on Free”	Top-ups need paid plan	Upgrade to Pro first
“Reset failed” on local last day of month	UTC vs local time	Wait until UTC day 1; then recheck
Paid but still blocked	Charge not active or balance still 0	Confirm Pro in Billing; refresh; top up if needed
Canceled Pro, chat still worked briefly	Leftover wallet	Expected until balance hits 0; then Free cap or resubscribe

When to escalate

Escalate with shop domain, plan, Billing screenshot, and UTC time if:

• UTC day 1 has passed and Free used did not reset
• Shopify shows a paid charge but Billing still shows Free / $0 after a reasonable refresh
• Chat fails while Billing clearly shows remaining Free replies or a positive Pro balance

Use the Appifire Technical Troubleshooting Playbook for non-billing defects.

Limits and non-goals

• Live Billing and pricing win over any blog number if they differ.
• Free marketing allowance: 500 AI replies/month.
• Pro: $20/month + variable wallet spend; pack sizes are confirmed in Billing.
• Hitting a limit does not delete your catalog sync or Knowledge Hub.
• This guide does not change Shopify’s charge confirmation UX.

Related Appifire guides

• What Counts as an Appifire AI Reply?
• Appifire Billing and Credits Explained
• Shopify AI Chat Pricing Guide
• Getting Started With Appifire AI Chat
• Or open appifire.com

Last verified

2026-09-07 against Appifire billing limit behavior (Free REPLY_LIMIT_EXCEEDED when used ≥ limit; Pro empty wallet blocks; Buy Credits on paid; Free reset UTC day 1; leftover wallet edge case). Re-check Billing labels after releases.

Next action

Open Billing now. If Free used is at the cap, choose upgrade or wait for UTC day 1. If Pro balance is $0, buy credits. Send one storefront test question only after Billing shows remaining capacity.