How to manage multiple WhatsApp numbers in one place
A second branch, a new brand or a separate support line usually means a second WhatsApp number. Here is what Meta allows, which limits the numbers share, and how to keep every number in one inbox with the right team on each.
MonoChat Team Updated: 5 min read
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To run several WhatsApp numbers well, register each one under your own business portfolio on the WhatsApp Business Platform, give each a clear display name, and connect them all to one team inbox where every number has its own team and rules. Meta starts a new portfolio with room for two numbers and raises that to 20 once you are verified, and every number in the portfolio shares one messaging limit.
This guide covers when a second number makes sense, the Meta rules that apply to all of your numbers together, and how to set it up in MonoChat.
When a business needs more than one number
One number is easier for customers to remember. A second number earns its place when the conversations behind it are really different:
| Situation | Why a separate number helps |
|---|---|
| Branches or stores in different cities | Each branch answers its own customers, with its own address and opening hours |
| Several brands under one company | Customers see the brand they bought from, not the holding company |
| Sales and support | Campaign replies don’t bury support questions, and each team owns its queue |
| Countries or languages | A local number and a team that speaks the customer’s language |
| Notifications and conversations | Order and delivery updates come from a number customers recognise for that purpose |
If the only reason is “more agents”, you don’t need another number. Several people can answer one number in a shared team inbox.
Meta’s rules for multiple numbers
How many numbers you can register
According to Meta’s documentation, new business portfolios are capped at two registered business phone numbers. Meta raises the cap to 20 automatically when the business completes business verification or reaches the 2,000 messaging limit, and sends a notification in Meta Business Suite. If you plan five branch numbers, finish Meta business verification first.
One messaging limit for all numbers
Messaging limits, the number of people you can send template messages to in a moving 24-hour period, are calculated at the business portfolio level and shared by all business phone numbers in the portfolio. The tiers are 250, 2,000, 10,000, 100,000 and unlimited, and a new portfolio starts at 250. A single number can use the whole limit, so a big campaign on your marketing number can leave a branch number unable to send its reminders that day. Our guide to WhatsApp broadcast limits explains how the tiers grow.
Each number has its own name and quality
Every number has its own display name, which customers see, and its own quality rating. A display name can be changed up to 10 times in 30 days, and Meta reviews a new name before it goes live. Name numbers so customers can tell them apart: “Atlas Dental Downtown” and “Atlas Dental Marina” work better than two numbers that both say “Atlas”.
Quality is per number, but the messaging limit is shared. A branch whose messages customers block or report lowers its own number’s quality rating, so each team should send only what its customers expect.
Each number can keep the app
With WhatsApp Coexistence, a number that already runs on the WhatsApp Business app can connect to the Cloud API and keep the app working, where Meta supports it. A branch manager can keep answering from the phone while the head office runs automations on the same number. See WhatsApp Coexistence.
How to set it up in MonoChat
MonoChat is an official Meta Business Partner. Your numbers stay in your own WhatsApp Business account and portfolio; MonoChat connects them through the Cloud API and puts their chats in one inbox.
1. Connect each number as its own channel. Go to Settings › Chat › Channels, click Connect and choose WhatsApp Business API (Cloud). Repeat for every number: MonoChat lets you add several channels of the same type. For each one you choose the country of your business, which sets the region where that channel’s message data is stored.
2. Group the people who answer. Create a workgroup per branch, brand or team under Settings › Team › Workgroups, for example “Downtown branch” and “Marina branch”, and set your Working Hours under Settings › Team.
3. Route by number. In a flow that starts with New Session Created, add a Channel condition for each number and an Assign Session action that gives the chat to that number’s workgroup. Add Within Working Hours if after-hours chats need a different reply. The conversation routing guide walks through the full flow.
4. Filter the inbox. Agents and supervisors can filter the session list by channel or by workgroup, so a branch sees its own chats and a manager can still see everything.
5. Send from the right number. A bulk message names the channel it is sent from, so each branch’s campaign goes out under its own name. Your own systems can do the same with the WhatsApp Template API app, where each request names the WhatsApp number to send from.
Instagram, Messenger, TikTok, Telegram and web chat channels work the same way, so a brand’s whole presence can sit in one workgroup.
What it costs
Meta bills every message to your WhatsApp Business account at its rate card, and MonoChat adds no markup. MonoChat’s free Basic plan includes one user and one channel. Growth is $120 a month with 2 users and 1 channel included, and each extra channel or user is $30 a month; more than 30 channels is available on Enterprise. Three branch numbers on Growth means two extra channels. Compare plans on the subscription plans page.
A checklist before you add a number
- Write down why the number exists and who answers it.
- Check your portfolio’s number cap; finish business verification if you need more than two.
- Pick a display name customers will recognise for that branch, brand or team.
- Create its workgroup and add at least two people.
- Add it to your routing flow and test with a phone that isn’t yours.
- Plan campaigns across all numbers together, because they share one messaging limit.
Start for free at app.monochat.ai and connect your first number.
Sources
- Meta for Developers: Business phone numbers (opened 29 Oct 2026)
- Meta for Developers: Messaging limits (opened 29 Oct 2026)
- Meta for Developers: Display names (opened 29 Oct 2026)
- MonoChat help center: Channels
- MonoChat help center: Chat screen, session filters
- MonoChat help center: Flows
Put this into practice with MonoChat