QR code connection
Connect the WhatsApp you already have by scanning a QR code
Keep your current number and the WhatsApp or WhatsApp Business app on your phone. Scan once, let recent chats sync in, and reply with your whole team from a shared inbox.
On this page
In short
whatsappx.si connects an existing WhatsApp or WhatsApp Business number through WhatsApp’s linked-device feature, the same way WhatsApp Web does. You scan a QR code from your phone, recent chat history syncs into the workspace, and your team replies from one inbox. Keep your phone active, send in small batches to people who opted in, and switch to the official WhatsApp Business Platform when you need volume, templates or automation at scale.
How does connecting WhatsApp by QR code work?
Your WhatsApp account lives on one primary phone. WhatsApp lets that phone link companion devices such as WhatsApp Web, the desktop app or a tablet, usually by scanning a QR code (WhatsApp Help Center). whatsappx.si uses this same linked-device feature: your workspace becomes one of the devices linked to your phone.
Nothing about your number changes. The WhatsApp or WhatsApp Business app stays on your phone with your profile, contacts and chats. You do not need a new SIM, a Meta developer account or a verification call. After the scan, recent conversations sync into the workspace and new messages arrive live. Each teammate signs in with their own email and password or Google account and gets a role (owner, admin or agent), so nobody shares the phone or a single password.
How do you link your WhatsApp number?
Choose the QR code option in your workspace
Sign in to whatsappx.si, open your workspace and pick the option to link WhatsApp with a QR code.
Scan it from your phone
In WhatsApp or WhatsApp Business, open Settings, tap Linked devices, then Link a device, and point the camera at the QR code.
Wait for recent chats to sync
Recent conversations and contacts load into the shared inbox. Keep the phone online until the sync finishes.
Invite your team
Send email invites with an owner, admin or agent role. Agents see only the chats assigned to them.
Reply together
Open chats, answer customers, assign conversations to a colleague and keep unread counts at zero.
What syncs into the inbox after you scan?
A QR-linked number brings the context your team needs to answer well.
Recent chat history
Recent conversations sync in so teammates can read what was said before they reply.
Contacts
Contacts from WhatsApp appear in the workspace, and you can add more by hand.
Images and documents
Photos and files customers send show inline in the thread, no download needed.
New messages, live
Incoming messages appear in the inbox as they arrive, powered by a live event stream.
Start a chat by phone number
Type a number to open a new conversation with someone who has agreed to hear from you.
Keyword auto-replies
Switch on keyword-triggered automations for common questions and see how often each one runs. AI replies are coming soon and are not available yet.
Does your phone need to stay online?
Not every minute, but it must stay in use. WhatsApp says linked devices “work without your phone online, but will log out if your phone is unused for over 14 days” (WhatsApp Help Center). Open WhatsApp on the primary phone at least every two weeks and the link stays alive. If the phone is lost, wiped or left switched off for weeks, the workspace is logged out and you scan again.
A few other facts about linked devices, from WhatsApp’s own help pages:
- Up to four linked devices at a time. That is the standard limit in WhatsApp’s Help Center, and the whatsappx.si workspace counts as one of them, alongside any WhatsApp Web, desktop or tablet sessions (About linked devices). Meta’s Business app pages describe higher limits for some multi-agent options, so check what applies to your account.
- A linked device cannot be the primary device. The account still belongs to the phone; whatsappx.si cannot replace it.
- Some features are phone-only. WhatsApp lists live-location viewing, broadcast-list management and WhatsApp Business Flows as unsupported on linked devices.
- One scan per number. Teammates sign in to whatsappx.si with their own logins; they do not scan the QR code themselves.
Who is QR linking for?
It is the fastest way to start when you already have a number customers know. Examples:
A small shop with one WhatsApp Business number
For example, a boutique whose owner answers orders alone could let two assistants reply from the inbox without buying a second phone.
A clinic or service business with a front desk
For example, a dental clinic could let the reception team confirm appointments from a shared inbox while the doctor keeps the phone.
A sales team sharing inbound leads
For example, a real-estate office could assign each incoming enquiry to a specific agent and keep the whole thread visible to a manager.
QR-linked number or the official WhatsApp Business Platform?
| Feature | QR-linked number | Official WhatsApp Business Platform |
|---|---|---|
| How it connects | Scan a QR code, like WhatsApp Web | Meta Embedded Signup inside whatsappx.si |
| Keeps the app on your phone | Yes | Not needed |
| Recent chat history syncs in | Yes | Not applicable or not documented |
| Phone must stay active | Yes, used at least every 14 days | No |
| Device limit | Four linked devices per account (standard) | Not applicable or not documented |
| Message templates synced with Meta | No | Yes |
| Several numbers per workspace | Not applicable or not documented | Yes |
| Meta messaging fees | None from Meta | Billed by Meta per delivered message |
| Best for | Existing number, small team, conversational replies | Higher volume, templates, automation at scale |
Device and 14-day facts from the WhatsApp Help Center (faq.whatsapp.com/378279804439436). Meta’s per-message fees change over time; check Meta’s pricing page before you plan volume.
When should you prefer the official API instead?
Choose Meta’s official WhatsApp Business Platform (Cloud API) when any of the following is true:
- You need to message people outside a conversation they started. On the Platform, approved template messages are the only way to reach someone outside the 24-hour customer service window (Meta documentation). whatsappx.si lets you create templates and sync them with Meta for API numbers.
- You expect real volume. The Platform is Meta’s sanctioned route for scale; a QR-linked number should stay at the pace of a person replying, in batches of 5–10.
- You want automation at scale or a verified badge. Platform numbers can request Official Business Account status, and messaging limits can scale up from an initial 250 unique users per 24 hours (Meta documentation).
- You do not want a phone in the loop. API numbers are not tied to a handset or the 14-day rule.
You can run both in one workspace: a QR-linked number for everyday replies plus official numbers for templates and volume. Meta bills its own per-message fees for the official API separately. To keep the same number on both, Meta offers “coexistence” for WhatsApp Business app numbers (Meta documentation).
Frequently asked questions
How many devices can I link to WhatsApp Business?
Does the QR connection work if my phone is off?
Can I connect a brand-new WhatsApp number?
Can I send bulk messages from a QR-linked number?
Can my WhatsApp account be restricted for using a third-party tool?
Can I use a QR-linked number and the official API together?
Related
Feature
Shared inbox
Answer customer WhatsApp chats as a team: one shared inbox with search, assignment, unread counts and live updates. Connect by QR code or the official API.
Glossary
WhatsApp Cloud API
The WhatsApp Cloud API is Meta’s hosted API for sending and receiving WhatsApp messages as a business, part of the WhatsApp Business Platform.
Resources
Features
Everything whatsappx.si does.
Pricing
Pricing (USA)
Plans for the United States, billed in US dollars.
Bring your team into one WhatsApp inbox
Create a workspace, connect a number by QR code or the official API, and invite your teammates.