How to Connect WhatsApp to POST

Choose “Keep WhatsApp Business on your phone”, then “Connect Existing Business Number”. Meta opens its own window. Choose to connect your existing WhatsApp Business app account, sign in with the Facebook account that manages your business, and confirm on your phone when Meta asks. Meta sometimes shows a QR code to scan from the WhatsApp Business app.

Afterwards you keep chatting from the app as usual. Customer messages also reach POST, and what you send from your phone shows in POST’s inbox. When you answer a customer on your phone, POST stops replying in that chat until you turn it back on, so a customer never gets two answers.

Meta decides whether a number qualifies; POST cannot override that. Some features work differently on a connected number: linked devices are signed out once and can be linked again (WhatsApp for Windows and WearOS are not supported), broadcast lists become read-only, and group chats, disappearing or view-once messages, live location and calls do not reach POST. Open the WhatsApp Business app at least every 14 days, or WhatsApp disconnects POST.

Source: Meta: onboarding WhatsApp Business app users. Meta’s description of what changes and what stays when a WhatsApp Business app number is connected.

Choose “Connect a new WhatsApp number”, then “Set Up New Number”. In Meta’s window, choose or create your business, add the number and enter the code Meta sends by SMS or voice call. POST then checks the number with Meta before you try a real message.

The number must not be on WhatsApp or WhatsApp Business already. A new SIM or a landline that can receive a call works well. If Meta says the number is already in use, go back and choose “Keep WhatsApp Business on your phone” instead.

If another company connects your number to WhatsApp today, the number can move to POST only through Meta’s official migration. Your current provider has to release it: ask them to start the migration and to turn off the number’s two-step verification PIN. Your Meta business must be verified.

When they confirm, choose “Connect a new WhatsApp number” in POST and pick that number in Meta’s window. The number keeps its display name, quality rating and messaging limit. Message templates are copied with fresh quality ratings, chats stored by your old provider stay with them, and messages can pause for a few minutes during the move. POST never disconnects another provider for you. If you would rather keep your provider, connect a different number to POST.

Source: Meta: migrating a phone number between providers. Meta’s requirements and what carries over.

POST shows the reason it gets from Meta. These are the common ones and what to do about each.

Not when you keep the WhatsApp Business app: your chats stay on your phone. Within 24 hours of connecting, POST can also bring in up to six months of one-to-one chats and your contacts’ names, but only if you choose to, once, as Meta allows. Keep WhatsApp Business open on your phone while it runs. POST never replies to imported messages.

Moving a number off the WhatsApp app completely is different. Meta requires deleting the WhatsApp account first, and chats on the phone are lost unless you back them up. POST does not ask you to do this.

No. Connecting your WhatsApp Business app number to POST does not require deleting anything, and deleting your account does not make a number more likely to qualify. If you ever want POST to stop, disconnect it in the WhatsApp Business app under Settings → Account → Business Platform, or in POST under Integrations.

Yes. Choose “I’ll connect WhatsApp later” or “Finish later” during setup. Your progress is saved. Connect any time from Integrations in POST, or reopen setup from the checklist on your home screen.

After connecting, POST checks the number with Meta. Then send a message to your business number from a different phone that you or a teammate controls, and ask something a customer would ask. You will see POST read it and prepare a reply. Depending on what you chose for POST to handle, the reply waits for your approval or goes out within your limits.