Not always. A fresh Business Manager with no history should be warmed up before its first campaign, while a BM with a fan page aged a year or older, a PZRD BM or a rented account can usually launch right away. Warming reduces red flags on the first spend, but it doesn't eliminate them.
What Warming Actually Does
Warming gives a new BM a short history of normal activity before it starts spending money. In practice it means sessions that simulate how a real person uses Business Manager: logging in, opening different sections, checking settings, ad accounts and reports.
Think of it as a trust signal. A freshly created BM that launches campaigns straight away behaves unnaturally, and Facebook's systems scrutinise that kind of account more closely. Warming is not the same as account aging after registration: aging is the time an account spends sitting idle, while warming is the activity you perform right before the first launch.

When Warming Matters Most
Warming matters most for a brand-new BM with no history, especially if you plan to spend big straight away.
You need warming if:
- The BM is brand new. A fresh BM without a fan page has no history and low trust. The benchmark is 20+ sessions of basic activity before the first launch.
- You're scaling aggressively. If you plan to spend high budgets immediately, warming gives you a buffer against ad account restrictions and policy reviews.
- The account has no payment history. A BM that's never had a card attached looks riskier than one with past transactions, even small ones.
- You're running a risky offer. If the niche or offer has a history of bans, warming lowers the chance of an instant block.
You can usually skip warming if:
- The BM has a fan page and is aged a year or older. It already has history and higher trust, so you can launch campaigns without warm-up sessions.
- It's a PZRD BM. It has already had an advertising restriction and been reinstated, so the platform knows it.
- It's a rented account from 2022 or older. Rental accounts belong to real people with their own activity history. They don't need artificial warming.
A small test budget on a new BM is less risky than a big one, but it isn't risk-free: a new account can still be checked or blocked.

How Warming Reduces Friction
A warmed BM tends to hit fewer checks and policy reviews when you set up the first campaigns. The account looks established, so the platform doesn't scrutinise every move as heavily.
This matters most for time-sensitive launches, where any check delays the start. Warming lowers the odds of a check but doesn't prevent it entirely. If the platform asks you to confirm ownership, pass the check: it's a standard procedure and can happen on a warmed BM too.
What Warming Won't Fix
Warming won't fix fundamental problems: it's preventative, not corrective. If the BM gets flagged for policy violations or payment issues, extra sessions won't help.
It also doesn't guarantee your campaigns will be approved. The platform reviews each campaign separately, so a warmed account still needs compliant creatives, landing pages and targeting. Policy and Risk flags that appear after you create an ad account are normal and are not grounds for a replacement.

Practical Approach
Warm up in short sessions spread over several days until you reach 20+ sessions, all from the same geo.
Use an antidetect browser and proxies so the device fingerprint looks natural, and don't jump between countries or regions. Simulate what a person actually does: log in, open different sections, check the ad accounts, adjust some settings. There's no need to create anything; what matters is that the activity is spread out over time rather than done all at once.
After warming, keep the first budget moderate and raise it gradually once the first spend goes through without issues.
The Bottom Line
Warming is insurance, not a requirement: a new BM without a fan page benefits from it, while a BM with a fan page aged a year or older or a PZRD BM doesn't need it.
If you're choosing from our Business Managers catalog, check the BM's age and whether it comes with a fan page in the product description; a separate guide explains which details matter in a listing. If the BM turns out not to work, you have 3 hours from purchase to request a replacement, so check it right away rather than after warming.
FAQ
How many sessions does it take to warm up a Business Manager?
The benchmark is 20+ sessions before the first campaign, spread over several days and run from one geo through an antidetect browser and proxies.
Can I run ads on a new BM without warming it up?
You can, but the risk of checks, spend restrictions or an ad account block is higher. If you skip warming, start with a small budget.
Does a PZRD BM need warming?
Usually not. A PZRD BM has already had an advertising restriction lifted, so it has history; the same goes for a BM with a fan page aged a year or older.