Karobar connects a WhatsApp number in one of two ways. Pick the one that fits, then follow its steps. If you are not sure what the WhatsApp Business API is, WhatsApp Business API explained covers it first.
Which way to connect
| WhatsApp Business app link (coexistence) | WhatsApp Business API | |
|---|---|---|
| Best for | Shops already selling on the WhatsApp Business app | Businesses that want everything in Karobar |
| Your phone | Keeps working; replies sync both ways within seconds | The number leaves the phone app |
| Past chats | Up to six months of chats and your phone contacts are imported once | Start fresh |
| Catalogue, quick replies, labels, away messages | Stay in the phone app | Managed in Karobar |
| Calls | Stay on the phone | Not in Karobar |
Link the WhatsApp Business app (coexistence)
You need an up-to-date WhatsApp Business app on the phone that uses the number.
- In Karobar, open Settings → Channels and choose WhatsApp Business.
- Pick WhatsApp Business App Link (Co-existence) and click Connect.
- A Meta window opens. Sign in with Facebook and follow Meta's steps for linking an existing WhatsApp Business app number, including the confirmation on your phone.
- Choose whether to share your past chats. Karobar shows the import as it runs; new messages sync either way.
- The number shows as Linked to WhatsApp Business app. Send yourself a message to check it arrives in the inbox.
Connect through the WhatsApp Business API
Your WhatsApp account needs to be in Meta Business Manager. Once a number moves to the API, the WhatsApp phone app can no longer use it.
- In Karobar, open Settings → Channels and choose WhatsApp Business.
- Pick WhatsApp Business API and click Connect.
- Sign in with Facebook in the Meta window, choose or create the business and the WhatsApp Business Account, and add the phone number.
- Back in Karobar, the number appears under your connected channels.
- Before sending marketing templates, add a payment method to the WhatsApp Business Account in Meta. Higher sending limits need Meta's business verification.
Add more numbers
Repeat the steps for each number, for example a sales line and a support line. All of them arrive in the same inbox, and templates and broadcasts are kept per number. How many numbers you can connect depends on your plan.
Background reading
Sources
Facts about other companies and platforms come from their own pages, checked on the dates shown. Plans and prices change; check the source before you decide.
- Meta: Onboarding WhatsApp Business app users (coexistence) (checked 2026-10-14)