WhatsApp Guides
WhatsApp Business app or a shared inbox?
The free app works well for one person. Most service businesses outgrow it the day a second person needs to reply.
What each one is good at
| WhatsApp Business app | Shared inbox on the Business Platform | |
|---|---|---|
| Who replies | Whoever holds the phone | Anyone on the team, each with their own login |
| Ownership | Not visible | Each chat has a named owner |
| After hours | Away message only | On-call person or AI replies from your rules |
| Link to jobs and invoices | Copy by hand | The chat becomes a quote, job or invoice in place |
| Messages outside the reply window | Limited | Through approved templates |
Signs the app is no longer enough
- The owner’s phone is the only place customer conversations live.
- Two people replied to the same customer, or nobody did.
- Evening enquiries wait until the morning.
- Job details are retyped from chats into a spreadsheet.
Switching without losing customers
Customers do not need to do anything: they keep messaging the number they already have. Before connecting, check how the number is used today and what happens to existing chat history on the phone, and plan the switch for a quiet hour.
Business-initiated messages and templates carry WhatsApp messaging charges on the Business Platform. Most replies to customers who wrote first fall inside the free service window.
The same evening, two ways
With the app on one phone: an enquiry arrives at 21:10 while the owner is at dinner. It is seen at 22:30, answered in the morning, and the customer has already booked someone else.
With a shared inbox: the same enquiry gets an immediate reply asking for the area and a photo, is assigned to the on-call person, and is offered the first slot tomorrow before the customer contacts anyone else.
What the single phone really costs
The WhatsApp Business app looks free, and the app itself is. The cost shows up elsewhere: in the enquiries nobody answered while the owner was driving, in the customer who got two different prices from two people, and in the job details that exist only in one person’s chat history. None of this appears on an invoice, which is why it is easy to underestimate.
A simple way to measure it is to look at one busy week. Count the enquiries that waited more than an hour for a first reply, the conversations where the customer had to repeat themselves, and the jobs where someone had to scroll back through a chat to find the address. If those numbers are more than a handful, the phone has become a bottleneck rather than a tool.
- Missed or late first replies during site visits and driving.
- Conflicting answers when two people use the same phone.
- No record of who promised what, and when.
- Customer history lost when a phone is replaced or a person leaves.
Who answers what in a shared inbox
A shared inbox works best when the team agrees a few simple rules before the switch. Without them, a shared number can create the same confusion as a shared phone, just on more screens.
| Conversation type | Usually owned by | Hand to |
|---|---|---|
| New enquiry | Office or dispatcher | Technician once booked |
| Quote question | Whoever sent the quote | Owner for discounts |
| Complaint | Owner or manager | Stays with them |
| Invoice or payment | Finance or office | Owner if disputed |
The rule that matters most is that every conversation has exactly one owner at a time. Ownership can move, but it should never be unclear. When a customer writes back three days later, the person who picks it up should see the full history and who handled it last.
A two-week switch plan
- Days 1–2: list who replies today, when, and what they usually answer.
- Days 3–4: agree ownership rules and write your standard replies.
- Day 5: connect the number during a quiet hour and test with a team member’s phone.
- Week 2: run real conversations, review each evening what waited too long, and adjust.
By the end of the second week, most teams stop thinking about the switch and start noticing what they can now see: which enquiries are waiting, who owns them, and which ones turned into booked work.
Common mistakes when moving to a shared inbox
Most problems after a switch come from habits, not from the software. The biggest one is keeping a personal WhatsApp going on the side “just for regular customers”. Within a few weeks, half the business is back on one phone and the shared inbox shows only part of the picture. Tell regular customers once, politely, that the business number is the one to use.
- Leaving conversations without an owner because “someone will pick it up”.
- Answering from memory instead of checking the customer’s history first.
- Copying job details into a spreadsheet out of habit, creating two versions.
- Not closing conversations when the job is done, so the inbox never looks clear.