Can multiple people use one WhatsApp Business number?

Yes, more than one person can work a single WhatsApp Business number. How many, and how well it works, depends on whether you use the WhatsApp Business app or the WhatsApp Business API. The app is built around one primary phone with linked devices. The API has no phone app at all, so the software you use it through decides how many people can log in.

Multiple users on the WhatsApp Business app

The app lets you link extra devices, such as a laptop or a second phone, to your business account. The number of linked devices is limited. Meta's WhatsApp Business site says Meta Verified lets a business link up to 10 devices and agents, and Meta's September 2026 Meta One announcement lists more linked devices among the benefits of its higher business plans. WhatsApp's 2024 Meta Verified announcement also mentioned using WhatsApp across multiple devices for employees.

This works for a small shop or clinic where two or three people share the replies. It gets harder as the team grows:

• Everyone sees every chat, so it is unclear who should reply.
• Two people can answer the same customer, or nobody does.
• There are no reports on response time or which salesperson handled which lead.
• Chats sit on devices, not in a system the business controls.

Multiple users on the WhatsApp Business API

With the API, messages arrive in software, usually a shared inbox or CRM. Your team logs in to that software instead of linking devices, so the device limits of the app do not apply. A good shared inbox adds what the app lacks:

Need	WhatsApp Business app	API with a shared inbox
Who replies	Anyone on a linked device	Each chat has one owner
New chats	Everyone sees them at once	Assigned automatically by rules such as round robin
Access control	All or nothing	Roles decide who sees which chats
Reporting	None	Response times and results per person
When someone leaves	History may sit on their device	History stays with the business

With coexistence, you do not have to give up the app. The owner can keep replying from the phone while the team works the same number in the inbox.

Which should you choose?

• One to three people, mostly existing customers: the app with linked devices is often enough.
• A sales or support team, or leads from ads: use the API through a shared inbox so every chat has an owner and nothing is missed.

How salestrack helps

In salestrack your whole team can reply from one number in the shared WhatsApp inbox. Each chat has an owner, colleagues can see the history, add notes and @mention each other, and assignment rules route new chats by keyword, ad, branch or round robin. You can set who sees all leads, a branch or only their own, and mask phone numbers for chosen roles. See Invite your team to get started.