What is WhatsApp warmup?

Why does WhatsApp warmup matter?

When a brand-new number suddenly messages hundreds of strangers, WhatsApp sees a spike with no history behind it, and those numbers are often restricted or banned within days. Warm-up gives the number a past: conversations that go both ways, steady activity and contacts who reply. It is one of the biggest things you control, alongside volume, message variety and who you message. No warm-up makes a number safe from bans; it removes one of the most common reasons numbers die.

How long should you warm a WhatsApp number?

At least 15 days before a new number's first campaign, and 30 days is better. Older numbers with real chat history need less. After warm-up, start with small campaigns and raise volume step by step yourself; in Wassuply, Health & Risk gives each number a plan (days to warm, safe daily limit, first campaign size) and marks it ready. A day-by-day plan is in a new WhatsApp number's first 30 days.

How does automated warmup work?

A warmer has your numbers chat with each other on a schedule. In Wassuply's WhatsApp warmer your numbers chat in rotating pairs using natural chat lines (10 built-in chat packs, or your own) that the same sender never repeats, with random 30-120 second gaps, only inside the hours you set. Warm-up Pods add real two-way chats with other Wassuply users' numbers (different owners, IPs and countries), so warm-up is not only you texting yourself. The warm-up chats are not AI-written.

What does a good warmup look like?

• Two-way: messages get replies, not just sends.
• Varied: different lines, different partners, different times.
• Paced: random gaps and a sensible daily volume, inside normal hours.
• Isolated: each number on its own session, fingerprint and, ideally, its own proxy.

Last updated October 24, 2026