Other frequent symptoms
I cannot write to a contact first — that is Meta's 24-hour window. Outside it you need an approved template: go to Templates.
The bot answers the same user several times — switch on Buffered Replies in Settings → WhatsApp Behavior and raise the Debounce Delay.
Team invitations do not arrive — the SMTP configuration in Settings → Email is missing. Without it, invitations and password recovery do not work.
All the times are wrong — the company timezone has been left on UTC. Settings → General.
The assistant answers in English — the AI Assistant node's Response Language is separate from the interface language. Set it to the language you want in the node.
The flow does not start on a channel — the channel is not ticked in the Message Trigger's Channel Types boxes.
Did not find the answer? Write to support@talkzen.io and tell us what you were doing and what you expected. If it concerns a conversation, the time and the channel save us a round of questions.