The WhatsApp Business app was built for one person, and no setting changes that. You can link a handful of extra devices to the same account, but everyone is signed into one identity. There are no separate logins, no way to assign a conversation, and no record of who replied.
Most teams discover this the same way: two people answer the same customer, or a message sits unread because everyone assumed someone else had it. Here is what the app actually allows, and what you get if you move to the API.
What the app allows
The WhatsApp Business app supports linked devices: your phone plus a small number of additional devices signed into the same account. In practice that covers a founder and one or two helpers sharing a number.
What it does not give you, at any number of devices:
- Separate user accounts. Everyone is the same identity.
- Assignment. No way to give a conversation to a specific person.
- Any record of who said what. The customer sees one voice, and so do you.
- Roles or permissions. Anyone signed in can do anything, including deleting chats.
- A way to remove someone’s access without logging everyone out.
That last one matters more than people expect. When someone leaves, your only option is to unlink devices and have everyone sign in again.
Where teams hit the wall
The device limit is rarely the real problem. The problem is that two people cannot work the same inbox without stepping on each other.
A customer asks about an order. One person starts typing an answer. Another sees the same unread message and answers it differently. The customer gets two replies that do not agree.
There is no way to see that a colleague is already handling something, because the app was never designed for a second colleague to exist.
What changes on the API
The WhatsApp Business API is not an app. It connects your number to software that your team logs into, each person with their own account. Same number for the customer, separate accounts for you.
That gives you the things the app cannot:
- Individual logins. Each agent signs in as themselves.
- Assignment. A conversation belongs to one person until it is handed over.
- Attribution. Every reply is stamped with who sent it.
- Roles. An agent sees conversations; an admin sees billing and settings.
- Access control. Remove one person without touching anyone else.
- History that survives. Conversations live in the platform, not on one person’s handset.
The honest trade-offs
Moving to the API is not free and not instant, so it is worth knowing what you give up.
You pay per message. The app is free. On the API, Meta charges per template message, and from 1 October 2026 also for replies inside the 24-hour window. See the October 2026 pricing change.
Campaigns need approved templates. You cannot broadcast free-form text. Anything sent outside the 24-hour window uses a template Meta has approved.
The number moves. A number already on the WhatsApp Business app has to be migrated to the API, and it cannot be used in both places at once.
If you are one person answering a manageable number of chats, the app is genuinely fine. Do not move for the sake of it. Move when the collisions start costing you customers.
What this looks like on Boldally
Boldally Chat is a shared inbox on the official WhatsApp Business Platform. Your team gets individual logins, conversations get assigned and reassigned, and every reply carries a name.
Plans start at ₹999 a month with two agent seats included, and extra seats are priced per agent. We add no markup to Meta’s message rates, so your message spend is Meta’s rate exactly.
See what each plan includes on the pricing page, or read what the WhatsApp API is if you are still working out whether you need it.