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WhatsApp is OMNI’s two-way channel. People write to you and you answer in the Inbox; you start conversations, and send broadcasts, with templates Meta has approved. Delivery and read receipts come back on their own. The plan must include WhatsApp. The menu then shows a WhatsApp section with Dashboard, Send WhatsApp, Templates and Settings.

How you connect

Open WhatsApp → Settings. Under How you connect, choose one of two:
FireFlo hosts a WhatsApp number for you. There is no Meta setup, and replies come to your Inbox.Until your own number is ready, you send from FireFlo’s shared number. FireFlo sets up a number of your own — ask support@fireflo.au. Once it is ready, Settings shows your number, hosted by FireFlo, with nothing more to set up.On a hosted number you see and use only the templates your account submitted.
The WhatsApp settings page

WhatsApp settings: how you connect, the callback URL, the number and its webhooks.

Finishing your own WABA

With your own WABA, two more sections appear in Settings.
1

Callback URL for your Meta app

In Meta for Developers, open your app → WhatsApp → Configuration. Paste the Callback URL and Verify token shown in OMNI, then click Verify and save. Under Webhook fields, subscribe to messages. The section turns green as soon as Meta’s first call arrives.
2

Number and webhooks

OMNI checks the number with Meta. If the number isn’t registered yet, enter its six-digit Two-step PIN (set in Business Manager) to register it. If webhooks aren’t subscribed, choose Subscribe to webhooks — inbound messages then reach OMNI.
If you make a new verify token, paste it into Meta again.

Voice calls over SIP

On your own WABA, Settings also shows Voice calls over SIP: the WhatsApp calling settings Meta holds for your number, read live. It shows whether calling and SIP are on, the server Meta calls in to, and the SIP credentials your phone system needs (the password only when you choose Show password; OMNI stores none of it). Copy guide gives the whole setup as text for whoever runs your phone system. You can switch the key exchange between Meta’s default and SDES — SDES is the fix when calls connect with no audio — or disconnect, so Meta stops sending calls to your SIP server. This section isn’t shown on a hosted or shared number. It is separate from Voice.

Conversations and the 24-hour window

WhatsApp lets a business write freely to someone only for 24 hours after their last message. Inside that window you can send anything from the Inbox. Outside it, you can only send an approved template — which is how a conversation restarts. The Inbox shows when a thread’s window is closed (“window closed · templates only”); the reply box then points you to Send WhatsApp to send a template. See WhatsApp templates. Inside the window, the Inbox can send:
  • Text, including saved quick replies.
  • Media — an image, video, audio file or document, up to 16 MB, with a caption.
  • Reply buttons — a question with up to three buttons of up to 20 characters each. The person’s tap comes back as their answer.
  • Reactions to the person’s messages.
When you open a thread, the person’s messages are marked as read on their phone. People can send you text, media, button taps and reactions; all of it lands in their WhatsApp thread.
WhatsApp also supports list menus — up to ten rows across up to ten sections — and product cards. OMNI uses them where a battery needs them, such as Calendar’s list of free times and Catalogue’s products.

Send WhatsApp

WhatsApp → Send WhatsApp starts conversations with an approved template.
1

To

Numbers, contacts or segments — up to 500 typed numbers and contacts at a time. For more, upload a file in a broadcast.
2

Template

Choose an approved template and fill in its blanks. The From line shows your WhatsApp Business number.
3

Send now or later

Under More options, Send later schedules it; until then you can cancel it or send it early. People who opted out are left out.
The Send WhatsApp page

Send WhatsApp: an approved template to numbers, contacts or segments.

You can also start from a contact’s page with Send WhatsApp.

The WhatsApp dashboard

WhatsApp → Dashboard shows, for the period you pick: Open conversations, Messages sent, Read rate and Median first reply; a chart of inbound and outbound Conversations; Agent load (open threads by assignee, right now); Template health, synced live from Meta; and Recent campaigns.
The WhatsApp dashboard

The WhatsApp dashboard.

Opt-outs

STOP stops a person on every channel; do-not-contact and quiet hours are always honoured. With the Customer data battery, people can stop WhatsApp alone, or WhatsApp marketing alone.

What batteries add on WhatsApp

WhatsApp works with no battery at all. Each one below adds to it when it is in your plan.

Who may