Error Log
The Error log is one time-ordered list of everything on your account that did not work: a message that could not be delivered, an AI reply that never went out, a channel that lost its connection, an import that failed halfway.
Every entry carries a short code, an explanation in plain words, and what to do about it — so when something looks wrong you can see the reason yourself and fix it, instead of writing to support and waiting for an answer. It’s also the quickest way to tell a real problem apart from something that behaved exactly as it should (a contact who opted out, a reply window that closed).
Where to Find It
In the main menu down the left side of the screen, at the very bottom, click Error log — it sits just above Help. (On a phone, tap the menu icon ☰ first, then Error log.)
Reading a Row
Each row is one thing that failed, newest first.
| Part of the row | What it tells you |
|---|---|
| Time | How long ago it happened. Hover it for the exact date and time. |
| Code | The short code for this kind of failure, for example TW-63016. Click it to copy. Every code is explained below. |
| Category and channel | What area it belongs to (delivery, AI, channel, billing, and so on) and which channel it happened on. |
| What happened | The failure in one line, with a link to the contact when there is one. |
| What to do | The fix, in one line. |
Click a row to expand it. The expanded row adds the full explanation, the provider’s own message when there was one, the provider’s own numeric code, and buttons that take you straight to the place you’d fix it — Open chat, Go to Channels, and similar. About this code opens this page at that code’s entry.
Filters
Above the list you can narrow things down:
- Time range — 24 hours, 7 days, or 30 days. It opens on 7 days and remembers the range you pick.
- Category chips — one chip per category, each with the number of entries in the range. Click to show only that category.
- Channel — limit the list to one channel, for example WhatsApp or Instagram.
- Errors only — hides warnings and information-only entries, leaving the things that actually failed.
- Search — type a contact’s name or number, or a code, to find a specific entry.
What the Log Covers
- Messages that could not be delivered, on every channel — WhatsApp Business, WhatsApp Web, SMS, Instagram, Messenger, Telegram, email and LinkedIn.
- Times the AI did not reply, and why — no agent was set to answer, credits ran out, a limit was reached, the schedule was closed.
- Channel problems — a WhatsApp Web session that disconnected, an expired login, a sending limit reached.
- Billing and limits — a past-due payment, sending paused, an empty credit balance, a contact limit reached.
- Knowledge base imports that failed.
- Broadcasts and campaigns that were paused automatically.
- Automation runs that stopped with an error.
- Webhooks that are failing or were switched off after repeated failures.
- Room calendars that could not be read.
What It Does Not Cover
- Anything that worked. The log only lists failures, so an empty page is good news.
- Platform-wide outages. If several unrelated things are failing at once, check System Status first.
- Per-recipient results of a broadcast. For how a send performed overall, open the broadcast itself — see Broadcasts.
When to Contact Support
Most entries tell you exactly what to change, and you can do it yourself. When an entry says to get in touch, or the same code keeps coming back after you’ve followed the fix, contact support and include the code and the time it happened (copy them straight from the row). That’s usually enough for us to find it without any back and forth.
All Error Codes
The first part of a code says where the failure came from:
- TW — Twilio, the provider behind WhatsApp Business and SMS. The number after it is Twilio’s own error code.
- META — WhatsApp Business through Meta. The number is Meta’s own error code.
- WAW — WhatsApp Web.
- APP — Your AI Connector's own codes, used for everything a provider didn’t give a number for.
Each code below has its own link, so About this code in the app lands on the exact entry.
WhatsApp Business (Twilio)
| Code | What it means | What to do |
|---|---|---|
TW-63005 |
WhatsApp rejected the message content. WhatsApp rejected the content of this message. | Check the message text, any media, and the template’s header and variables, then send again. |
TW-63007 |
Sender number is not connected. This message was sent from a number that is not connected as a WhatsApp sender. | Reconnect the number under Settings → Channels, then try again. |
TW-63012 |
Temporary WhatsApp problem. WhatsApp had a temporary problem on their side. | Try sending again in a few minutes. |
TW-63016 |
24-hour reply window closed. The 24-hour reply window with this contact has closed, so a free-form message cannot be delivered. | Send an approved template to reopen the conversation. |
TW-63021 |
Content not accepted by WhatsApp. The content did not pass WhatsApp’s checks: an unsupported message type, media that is too large or not publicly reachable, or a header or button text over the length limit. | Check that media links open in a private browser window, shorten button labels, and keep template bodies under 1,024 characters. |
TW-63024 |
Number cannot receive WhatsApp messages. This number cannot receive WhatsApp messages. It may not be on WhatsApp, or the person has not accepted WhatsApp’s latest terms. | Confirm the number with the contact, or reach them by SMS or email. |
TW-63027 |
Template not available in this language. The template does not exist in the language it was sent in. | Pick a template approved in the contact’s language, or create one in that language under Templates. |
TW-63032 |
Blocked by a Meta experiment. WhatsApp will not deliver to this number because Meta has included it in a platform experiment. | There is nothing to fix on your side. Reach the contact on another channel if it is urgent. |
TW-63049 |
Marketing template blocked by Meta. Meta blocked this marketing template. Marketing templates can no longer be delivered to US numbers. Elsewhere this is usually a temporary cap on how many marketing messages that person can receive. | For US contacts use SMS or email. For other countries, try again later. |
TW-63050 |
Contact opted out of marketing. This person opted out of marketing messages from your business on WhatsApp. | They will not receive marketing templates again until they opt back in. Utility and service messages still work. |
TW-63051 |
WhatsApp sender locked by Meta. This WhatsApp sender is locked by Meta. This usually happens after 30 days with no messages sent. | Contact support to get it re-registered. |
TW-63058 |
Country not allowed for business messaging. WhatsApp does not allow business messaging to recipients in this country. | Reach the contact by SMS or email. |
TW-21211 |
Invalid phone number. The contact’s phone number is not a valid number: a missing country code, a typo, or extra digits. | Open the contact and correct the number in international format, for example +14155551234. |
TW-21212 |
No approved sender on this account. The number this message was sent from is not an approved WhatsApp sender, so the provider refused it. | Open Settings → Channels and check your WhatsApp Business number is connected and approved. If it shows as connected, contact support and quote this code. |
TW-21408 |
Destination country not enabled. Sending to the contact’s country is switched off on the sending account. | For SMS with your own Twilio account, enable the country under Messaging → Settings → Geo Permissions in the Twilio Console. For WhatsApp, contact support. |
TW-21602 |
Empty message. The message had no text, so it could not be sent. | Add text to the message and send again. |
TW-21610 |
Contact replied STOP. This person texted STOP to your number, so carriers block further texts to them. | Remove them from your lists. They can text START to your number to opt back in. |
TW-21656 |
Template variables do not match. The values filled into the template did not match its placeholders: a missing or empty value, or a value with line breaks. | Check every variable has a value and no line breaks, then resend. |
TW-21703 |
No sender available for this destination. The account has no sender that can reach this contact’s country with this type of message. | Check the number under Settings → Channels. If it is connected and approved, contact support and quote this code. |
SMS (Twilio)
WhatsApp Business (Meta)
| Code | What it means | What to do |
|---|---|---|
META-131026 |
Message undeliverable. WhatsApp could not deliver this message. The number may not be on WhatsApp, the person may not have accepted the latest terms, or their app is very out of date. | Confirm the number with the contact, or reach them another way. |
META-131047 |
24-hour reply window closed. More than 24 hours have passed since the contact last messaged you, so a free-form message cannot be delivered. | Send an approved template to reopen the conversation. |
META-131049 |
Marketing message held back by Meta. Meta did not deliver this marketing message to keep engagement healthy. The contact has hit their limit of marketing messages for now. | Wait at least 24 hours before sending marketing templates to this contact again. |
META-131053 |
Media could not be uploaded. The media attached to this message could not be uploaded to WhatsApp. | Check the file type is supported and the link opens publicly, then resend. |
META-131056 |
Too many messages to this contact. Too many messages were sent to this contact in a short period. | Wait a little before messaging this contact again. |
META-132000 |
Template variables do not match. The number of values filled into the template did not match the template’s placeholders. | Check every placeholder has a value, then resend. |
META-132001 |
Template not found or not approved. The template does not exist in this language or has not been approved yet. | Pick an approved template in the contact’s language under Templates. |
META-132015 |
Template paused for low quality. Meta paused this template because of low quality ratings. | Edit the template to improve it and resubmit; use another approved template in the meantime. |
META-130472 |
Blocked by a Meta experiment. Meta did not send this message as part of a platform experiment. | There is nothing to fix on your side. |
META-133010 |
Number not registered with WhatsApp Business. The sending number is not registered on the WhatsApp Business Platform. | Reconnect the number under Settings → Channels. If it stays like this, contact support. |
Messenger and Instagram
| Code | What it means | What to do |
|---|---|---|
APP-1901 |
Facebook page automation conflict. Facebook would not let this reply through because another app or Facebook’s own automated responses currently control this conversation. | In your Facebook Page settings, turn off Facebook’s automated responses and, under Advanced Messaging → Handover Protocol, make the connected app the primary receiver. Then reply again. |
APP-1902 |
Meta 24-hour window closed. Instagram and Messenger only allow replies within 24 hours of the contact’s last message. This contact went quiet more than a day ago, so Meta blocked the message. | Wait for the contact to message again. Templates do not exist on these channels; reach them by WhatsApp, SMS or email if it cannot wait. |
APP-1903 |
Comment already has a private reply. Meta allows one private reply per comment, and this comment already got one. | Nothing to fix. Continue in the contact’s DM thread instead. |
APP-1904 |
Comment no longer available. The comment was deleted or is too old for a private reply (Instagram allows private replies for 7 days). | Nothing to fix. |
APP-1905 |
Missing Facebook or Instagram permission. Meta refused the message because the connection is missing a permission. | Reconnect the account under Settings → Channels and accept every permission. For Instagram, also check the account is a professional account linked to your Facebook Page and that “Allow access to messages” is on in the Instagram app. |
APP-1906 |
Facebook or Instagram login expired. The login token for this Page or Instagram account has expired or was revoked, so nothing can be sent. | Reconnect the account under Settings → Channels. |
APP-1907 |
Contact no longer reachable. Meta no longer finds this conversation or person. They may have blocked you, deleted their account, or removed the conversation. | Nothing to fix. |
APP-1908 |
Temporary Meta error. Meta had a temporary problem. | Try again in a few minutes. |
APP-1909 |
Meta rejected this message. Meta refused this message for the reason shown in the expanded row. | Read the detail; if it is not clear, contact support and quote this code. |
WhatsApp Web
| Code | What it means | What to do |
|---|---|---|
WAW-463 |
WhatsApp is limiting messages to this contact. They may have blocked this number, or it is a new conversation WhatsApp will not allow from this account yet. | Wait and try later, or reach the contact another way. New numbers should warm up gradually. |
WAW-479 |
Temporary WhatsApp connection issue. | Try sending again. |
APP-1101 |
WhatsApp Web is not connected. The message could not go out because the WhatsApp Web connection was down at the time. | Open Settings → Channels and click Reconnect, then scan the QR code with the phone. Resend the message afterwards. |
APP-1102 |
No WhatsApp number connected. This account has no connected WhatsApp number, so the message had nowhere to go. | Connect a number under Settings → Channels. |
APP-1103 |
Sent on the wrong WhatsApp connection. This conversation lives on your WhatsApp Web number, but the message was sent through WhatsApp Business. | Reply from the chat itself so it uses the conversation’s own channel. |
APP-1104 |
WhatsApp Business sender not set up. The account tried to send through WhatsApp Business, but no WhatsApp Business number is set up. | Connect a WhatsApp Business number under Settings → Channels, or switch the contact to a channel you have connected. If a number is connected, contact support and quote this code. |
APP-1201 |
Invalid phone number. The contact’s phone number could not be validated. | Open the contact and correct the number in international format. |
APP-1301 |
Daily new-contact limit reached. (warning) This WhatsApp Web number has reached today’s limit for messaging people who have never messaged it. The limit exists to protect the number from being banned. | Wait until tomorrow. The limit grows as the number warms up. See Scaling WhatsApp outreach safely. |
APP-1401 |
No approved template attached. A template message was sent without an approved template. | Pick an approved template under Templates and resend. |
Other Channels
| Code | What it means | What to do |
|---|---|---|
APP-1501 |
Email address rejected. The recipient’s mail server rejected the address. | Check the contact’s email address for typos. |
APP-1502 |
No email inbox connected. This account has no connected email inbox to send from. | Connect one under Settings → Channels → Email. |
APP-1503 |
Email could not be sent. The email could not be sent for the reason shown in the expanded row. | Check your email provider settings under Settings → Custom Email Provider. |
APP-1601 |
Telegram session expired. The Telegram login for this account was ended, usually from the Telegram app’s active sessions. | Reconnect Telegram under Settings → Channels. |
APP-1602 |
Blocked on Telegram. One side has blocked the other on Telegram, so the message cannot be delivered. | Nothing to fix from here. |
APP-1603 |
Telegram message failed. Telegram did not accept this message. | Try again; if it repeats, reconnect Telegram under Settings → Channels. |
APP-1701 |
SMS not set up. This account has no SMS sender connected. | Connect your Twilio account or Android phone under Settings → SMS Provider. |
APP-1801 |
LinkedIn conversation not linked. The message could not be matched to a LinkedIn conversation. | Open the conversation from the LinkedIn page and reply from there. If it repeats, contact support. |
APP-2001 |
Sending paused: billing. Outbound messages are paused because of an unpaid invoice or a blocked subscription. | Settle the payment under Settings → Billing; sending resumes automatically. |
APP-9001 |
Delivery failed. The message could not be delivered. The provider’s reason, when there was one, is shown in the expanded row. | Try again; if it keeps happening, contact support and quote this code and the time. |
AI
Channels
Billing and Limits
Knowledge Base
Broadcasts and Campaigns
| Code | What it means | What to do |
|---|---|---|
APP-5101 |
Campaign paused automatically. The campaign was paused because too many messages failed in a row. | Read the failures above it in this log, fix the cause, then resume the campaign. |
APP-5102 |
Send guard stopped a broadcast. The broadcast was stopped because it looked like it was going to people who never messaged you, which risks the number. | Review the audience, then resume from the broadcast page. |
APP-5103 |
Send guard warning. (warning) A broadcast is messaging many people who never messaged you. | Keep the audience warm and the volume gradual. See Scaling WhatsApp outreach safely. |
APP-5104 |
Broadcast paused automatically. The broadcast was paused after repeated failures. | Fix the cause shown in the delivery failures, then resume. |
Automations
Integrations
Appointments
Next Steps
- System Status — check whether an issue is on our side.
- Notifications — choose which failures also reach you by email, push, or the bell.
- Webhooks — send events to your own systems.