Your Whole Team on One
WhatsApp Number
Multiple agents, one number. Chat assignment, filters, bulk actions and AI bot — all in a shared inbox on the official WhatsApp Business API. No more "who is replying to this?"
The WhatsApp Business App doesn't scale past 2 people
Meena runs an insurance agency in Pune with five agents. They all share one WhatsApp Business App login. Two agents sometimes reply to the same customer without knowing. Messages get missed because nobody knows whose job it is. Call logs and chat history live on one phone.
The WhatsApp Business App supports up to 5 linked devices — but with no assignment, no audit trail and no CRM context. For a sales team, that's not a team inbox. A shared team inbox built on the official API is the right solution.
What's in the 3Sigma WhatsApp inbox
Every feature a sales team needs to manage WhatsApp at scale — without switching to a separate inbox tool.
Chat assignment
Assign any conversation to a specific agent. Everyone sees who owns what — no two agents replying to the same lead.
Powerful filters
Filter by agent, bot, label, read/unread, date. Find the right conversation instantly in a high-volume inbox.
Pin important chats
Pin high-priority conversations to the top of the inbox so they don't get buried under new enquiries.
Bulk actions
Select multiple chats and assign, label, or archive in one action. Triage 20 enquiries in 30 seconds.
Bot integration
AI-handled chats appear in the same inbox with a bot tag. Hand off to a human whenever the lead needs it.
Full message log
Every message — media, reactions, delivery status — is stored in the lead timeline, not just the inbox.
How chat assignment works — step by step
- 1
A lead sends a WhatsApp message to your business number.
- 2
The message appears in the shared inbox — visible to all agents with access.
- 3
A team leader assigns it to the right salesperson (or automation assigns it by rule).
- 4
The assigned agent gets a notification and the chat moves to their queue.
- 5
The agent replies from within 3Sigma — the lead sees the same number, no change on their end.
- 6
Every message and action is saved on the lead's CRM timeline.
Shared inbox vs WhatsApp Business App
| Capability | WhatsApp Business App | 3Sigma Shared Inbox (API) |
|---|---|---|
| Max devices / agents | 5 linked devices | Unlimited agents |
| Chat assignment | No | Yes — per chat or via rule |
| Inbox filters | Basic (unread/archived) | Agent / bot / label / date |
| Bulk actions | No | Yes |
| AI bot in same inbox | No | Yes |
| CRM timeline for every chat | No | Yes — full history |
| Calling from same app | No | Yes — SIM auto-dialer + cloud |
| Audit trail | No | Yes |
The shared inbox is just the start
WhatsApp CRM
Full WhatsApp sales CRM — pipeline, calling, follow-up and invoices, all with the shared inbox as the WhatsApp layer.
Call management
SIM-based auto-dialer, call logging and caller ID — work calls and WhatsApp from the same CRM.
WhatsApp Coexistence
Already have a WhatsApp Business number with chat history? Keep it and add the shared inbox without losing old conversations.
Team management
Assign roles, set permissions and manage multiple branches — the foundation for a well-run shared inbox.
Questions about the WhatsApp shared inbox
What is a WhatsApp shared team inbox?
A WhatsApp shared team inbox lets multiple sales agents work from a single WhatsApp business number — each agent sees incoming chats, takes ownership of a conversation via assignment, and replies on behalf of the company. Customers always message the same number; behind the scenes, the right agent picks it up. 3Sigma implements this on the official WhatsApp Business API.
How does chat assignment work in 3Sigma?
When a lead sends a WhatsApp message, it appears in the shared inbox. A team leader can manually assign it to any agent, or you can set up automation rules to assign based on source, label or lead owner. The assigned agent receives a notification and the conversation moves to their queue. Unassigned chats are visible to everyone with inbox access.
Can I filter the inbox by agent, bot or status?
Yes. The 3Sigma WhatsApp inbox has filters including: assigned agent, bot (show only AI-handled chats), read/unread, pinned, date range and labels. If you manage a team of 10 agents, each agent sees their own assigned chats without the inbox becoming chaotic.
Can I run bulk actions from the shared inbox?
Yes. You can select multiple conversations and apply bulk actions — assign to an agent, change the label, mark as read, archive — without opening each chat individually. This is useful for triaging a batch of inbound enquiries quickly.
Is this different from just sharing a WhatsApp Business App login?
Completely different. Sharing a WhatsApp Business App login between multiple people is against Meta's terms and does not scale beyond 2–3 devices. The 3Sigma shared inbox uses the official WhatsApp Business API — unlimited agents on one number, each with their own login, full conversation history and proper assignment. It's also legal and won't get the number banned.
Can the AI bot and the team share the same inbox?
Yes. When the AI bot is handling a lead, the inbox shows those chats as bot-assigned. If a lead asks to speak to a human, a team member can take over the conversation. You can filter the inbox by bot to see which chats the AI is currently handling.
Do I need a new WhatsApp number for the shared inbox?
Not necessarily. With WhatsApp Coexistence you can connect your existing WhatsApp Business number and bring your chat history and contacts into the shared inbox. If you prefer a fresh API number, 3Sigma helps with WABA onboarding.
One number. Your whole team.
Book a free demo and see the WhatsApp shared team inbox in action — with chat assignment, filters and AI bot.