The Marketing › WhatsApp tab lets you send and receive WhatsApp messages from your business number. Its menu has Chats, Broadcast, Templates and Connect. Until a number is linked, every option opens the Connect screen.
What do I need before connecting?
An A2P-approved number in Stackably. WhatsApp uses one of these numbers, and no Facebook connection is needed.
A WhatsApp Business account. Personal WhatsApp accounts and the WhatsApp phone apps can't be connected.
Good to know
WhatsApp is a separate channel. Calls and texts on the same number keep working.
You can connect one WhatsApp number per account. To change it later, disconnect first.
WhatsApp requires an explicit opt-in before you message someone. A contact who replies STOP is opted out automatically, and broadcasts only go to opted-in contacts.
How do I connect?
In WhatsApp number (A2P-approved), choose the number to use.
In your Twilio Console, open Messaging → Senders → WhatsApp senders.
Register that number for WhatsApp using self sign-up, creating or selecting your WhatsApp Business Account. No verification code is sent to the number.
Come back to Stackably and click Link WhatsApp. Stackably detects the sender automatically.
If automatic detection doesn't work, use Advanced: link by sender SID under the button.
Once linked, you can also switch a text conversation to WhatsApp. See Texting customers from Marketing › Text › Conversations.