Your AI answers WhatsApp? The AI Act followed it there.

Article 50(1) attaches to the AI system interacting with people — whatever the channel. Website chat, WhatsApp Business, Messenger, Instagram DMs, a voice agent on your phone number: same duty, different placement.

WhatsApp / Messenger / DMs

Put the disclosure where first contact happens: the automated greeting message (“Hi! I’m the AI assistant of [Business] — a human colleague can take over anytime, just ask.”), plus your business profile description. WhatsApp Business API’s greeting-message slot is exactly right for this; the Kit ships ready wording in all 24 official EU languages.

Phone / voice AI

Hardest channel — no screen. One spoken sentence at the start: “You’re speaking with [Business]‘s AI assistant.” Voice AI is also where the “obvious it’s AI” exemption is weakest (callers assume humans) and where being fooled annoys people most. Disclose, always.

Human handoff etiquette

When the bot escalates to a human, say so (“Connecting you to a colleague”); when the AI returns, re-disclose. The principle behind Art. 50(1) is simply: nobody should wonder whether they were talking to a machine.

In the Kit

The website widget installs itself; the channel wordings are copy-paste, in all 24 official EU languages.

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Sources are cited in place; official text: Regulation (EU) 2024/1689. This guide is a technical explanation, not legal advice.