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Yes. On WhatsApp the message body caps at 4,095 characters and anything longer is cut off mid-sentence, so instruct the agent to answer briefly.
Is there a character limit on WhatsApp?
Yes. Zendesk puts the message body for an AI agent in messaging at a maximum of 4,095 characters, and shorter again for templates and some message types. Go past it and the text is truncated rather than refused, which is the worse of the two: the customer gets an answer that stops mid-sentence and reads as a fault.
For comparison, the Web Widget allows 4,096 characters for end users and agents alike, so this is not a WhatsApp quirk so much as a ceiling you meet wherever an unconstrained answer runs long.
What Zendesk suggests
Link to a help centre article when the message needs more space than that. Which is also the better answer for the reader.
How do I keep the answers short?
- Instruct the agent to be brief on this channel. Where you set communication guidelines, say so explicitly.
- Link rather than explain. A sentence and a link beats three paragraphs, and works better on a phone anyway.
- Split long answers into a short reply plus an offer to send more.
It suits the medium
WhatsApp is short by nature. An answer that would be right in an email is wrong here whatever the technical limit, so the constraint pushes you towards what works.
Test on a phone
Ask the agent your most complicated common question and read the answer on a real device. That tells you whether your instructions are working better than any character count will.
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