Warming up a WhatsApp number
Warming up a WhatsApp number before connecting it to your CRM: a 10-day plan for a brand-new number, 2–3 days for an active one, and how to bring a number back after a ban.
Warming up means letting a number live an ordinary life before you start talking to customers through it.
WhatsApp watches new and dormant numbers closely. If such a number immediately starts messaging strangers, the algorithm reads it as spam — and the ban often arrives on the very first day. Warming up shows the system that there is a real person behind the number.
Which warm-up does your number need
The routines differ — pick your case:
Brand-new number — 10 days
The most fragile case: rushing here almost always costs you the number. Here is the overall picture first, with the same plan step by step below.
| Day | What happens | How many messages |
|---|---|---|
| 1 | Registration, profile, contacts. Don’t connect the number anywhere | none sent |
| 2–4 | Other people message you — colleagues, friends, your own numbers | 1 incoming every 2 hours |
| 4 | You start replying to people already in your contacts | 1 outgoing every 2 hours |
| 5–10 | More conversations, small groups, calls. You may connect to Radist.Online | 12–100 a day by day 7 |
| 11+ | Working with customers | normal load, no spikes |
Day 1. Registration and setup
Register the number in WhatsApp, set a profile photo and a name. Add a few contacts from your phone book.
Then leave the number alone for 24 hours: don’t connect it to Radist.Online or to WhatsApp Web, and don’t message anyone.
Days 2–4. Incoming only
Let other people write to you: colleagues, friends, your own personal numbers. The more different senders, the better.
Pace — roughly one incoming message every 2 hours. Vary the format: text, voice messages, photos, documents.
Day 4. Start replying
Reply to incoming messages — one outgoing every 2 hours, and only to people already in your contacts.
Write naturally, not in templates.
Days 5–10. Build up activity
Increase the volume gradually: by day 7 you can reach 12–100 messages a day. Add new contacts slowly, create 1–2 small groups of 3–5 people, make voice and video calls.
From day 5 the number can be connected to Radist.Online — but don’t message customers first just yet.
From day 11. Working with customers
The number is now noticeably more resistant to bans, so you can start working. Keep the pace steady, without sudden spikes.
After 25–30 days of calm activity the number gets a green light from the system and runs stably.
Number already in use — 2–3 days
The number is alive and already trusted. The task is simpler: connect it to the service carefully.
Check two conditions first. A number registered in WhatsApp less than 24 hours ago must not be connected — that is an instant ban, follow the brand-new number routine instead. And if the number hasn’t been used for more than 7 days, WhatsApp treats it as dormant: give it 2–3 days of conversation before connecting.
2–3 days before connecting
Chat with colleagues, friends and customers, gradually increasing the number of conversations. Try to have people write to you first: incoming messages build trust faster than outgoing ones. Mix the formats — text, voice, photos.
The first 24 hours after connecting
Accept incoming messages from customers and reply to them. If you need to message a customer first, do it manually and personally — no bots, no template texts. Don’t launch broadcasts or automated sequences yet.
After that
Return to your usual load gradually. Broadcasts only to a warm base and in small batches.
Connected but never warmed up
A common situation: the number was connected to the CRM straight away and you only learned about warming up later. If it still works, there is no need to panic — but the next week should be careful.
Cut down outgoing messages
Cancel scheduled broadcasts and automated sequences. The fewer messages go to people who aren’t expecting them, the better.
Mostly reply for a week
Work with people who wrote to you first. Message someone first only manually, and only if they are waiting for you: they left a request, you were already talking, you agreed to call.
Return to the load gradually
After a calm week, build the volume back up as smoothly as in the brand-new number routine — treat yourself as being around its day 5.
Watch for warning signs
Delayed messages, a dropped web session, groups you can’t create — a reason to slow down again. See the list below.
Number after a ban
After a ban the warm-up resets completely. Even a three-year-old number now looks new to the algorithm — and it is under closer watch. The second ban comes faster than the first.
Don’t reconnect right away
Message us first — we’ll clear your integration. Without that the number may be banned again.
Warm it up from scratch
All 10 days of the brand-new number routine, from the very beginning. Stay near the lower bound: 12–20 messages a day, not 100.
Turn off number checking
In the integration settings, disable the option that checks whether a customer’s number is registered in WhatsApp. Frequent checks look like automation and increase the risk of a ban.
No broadcasts for the first two weeks
Only conversations with people who messaged you. And don’t use a phone that already had a banned WhatsApp account on it.
Things you must never do
These will get you banned on a warmed-up number too:
- send identical text to different people — vary the wording;
- broadcast to a cold base: only warm customers who expect your message, in batches of roughly 15 contacts with pauses;
- add a lot of new contacts in a short time;
- send everything at the same time of day — vary it;
- put links to third-party sites into first messages;
- register the number on a phone that previously had a banned account;
- connect the number to several services at once;
- keep number checking enabled if you don’t need it: the setting that verifies whether a customer’s number is registered in WhatsApp makes the system poll WhatsApp constantly, and that looks like automation.
How to tell the number is at risk
WhatsApp rarely bans without warning — these signs usually come first:
- messages are delivered with a delay, from a minute to several hours;
- you can’t create a group or add participants to one;
- the service or WhatsApp Web disconnects on its own, keeps asking you to scan the QR code again, or refuses to connect a new device;
- messages don’t sync between the phone and the computer;
- calls or statuses stop working, or a business account disappears from the catalogue.
What to do if you notice this. Sharply reduce outgoing messages. Disconnect linked devices for 24–48 hours. Spend two or three days using the number only for personal conversations with familiar contacts. Check your contacts for numbers that get mass spam reports. And try to receive more incoming messages: let conversations start with them, not with you.
When warming up is no longer enough
Warming up lowers the risk, but it doesn’t cancel WhatsApp’s rules. It won’t help if:
- you need regular broadcasts to a large base;
- numbers keep getting banned one after another despite the warm-up;
- you can’t afford to risk the number that carries all your customer conversations.
Frequently asked questions
Can I warm up a number faster than 10 days?
No. The WhatsApp algorithm doesn’t look at the number of messages but at how the number behaves over time: whether new people appear, whether they reply to you, whether activity grows smoothly. Trying to do it all in one day looks exactly like spammer behaviour.
Can I warm up a number by messaging myself?
One or two of your own numbers in the conversation are fine, but that alone isn’t enough. What matters is having several different senders. The best option is to ask colleagues and friends to write to you over a few days.
Does warming up guarantee the number won’t be banned?
No. WhatsApp makes the decision and we have no influence over it. Warming up greatly reduces the risk at the start — but if you follow it with mass broadcasts to a cold base, even a warmed-up number gets banned. Only the WhatsApp Business API protects you from bans for broadcasting.
Does Radist.Online warm the number up for me?
Not for WhatsApp: the platform’s policy doesn’t allow automating this safely, so you run the warm-up yourself following the guide above.
What if the number gets banned during the warm-up?
Request a review inside the WhatsApp app and contact our support. Chances of getting unbanned are high the first time. See the FAQ on unofficial WhatsApp for details.