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Whatsy links to your existing WhatsApp account using WhatsApp’s official Linked Devices feature — the same mechanism used by WhatsApp Web. No second phone number, no SIM card, and no third-party credentials are required. Once linked, your phone remains the primary device and Whatsy acts as a connected client that can send and receive messages on your behalf.

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Linking your account

1

Open Whatsy and reach the connect screen

Launch the Whatsy app on your Mac. On the welcome screen, click Get Started. Whatsy will advance to the connect screen and automatically begin generating a QR code inside a yellow panel.
2

Wait for the QR code to appear

Leave the Whatsy window visible and in focus. The QR code appears in the yellow panel within a few seconds as the agent initializes. Do not minimize the window while completing the next steps on your phone.
3

Open Linked Devices on your phone

On iPhone: open WhatsApp → tap Settings (bottom-right) → Linked Devices → Link a Device.On Android: open WhatsApp → tap the three-dot menu (top-right) → Linked Devices → Link a Device.
4

Scan the QR code

Point your phone camera at the QR code displayed in the Whatsy app. WhatsApp will read the code automatically — you do not need to tap a shutter button.
5

Confirm the connection

WhatsApp will confirm the link on your phone with a success message. In the Whatsy app, the QR panel will be replaced by a green checkmark and the status will change to Connected. Whatsy is now linked to your account.
QR codes expire after approximately 60 seconds. If yours expires before you scan it, Whatsy will automatically generate a fresh one — just wait a moment for it to appear and then scan the new code.

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Auto-reply is off by default

After linking, Whatsy does not immediately start replying to messages. Auto-replies are disabled by default so you have time to configure your persona and review your settings before anything is sent on your behalf. To turn on auto-replies, go to the Dashboard and toggle the Running / Paused switch. You will see the agent status headline update immediately when it goes live.
Enabling auto-reply means Whatsy will respond to real WhatsApp messages in your name. Make sure you have reviewed and activated a persona before turning it on.

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Disconnecting your account

You can disconnect at any time by navigating to Settings → WhatsApp Connection and clicking Disconnect Device. This ends the active WhatsApp session and stops all agent activity immediately. Your personas, behavior rules, and activity history are preserved — nothing is deleted.
After disconnecting, Whatsy will show a Reconnect Device button in Settings. Clicking it restarts the agent and generates a fresh QR code to scan. Relinking has no effect on your WhatsApp account on your phone — your chat history, contacts, and groups are completely unaffected.