Warm-up

Warm-up is the period in which a new WhatsApp number is used in real conversations before any mass messaging. Without warm-up, any message sending is detected by the anti-spam algorithm and leads to banning.

Why WhatsApp bans numbers

WhatsApp's algorithm monitors "non-human" patterns: many of the same messages, perfect intervals, no messages received, reports by recipients. New number + any escalated messaging = immediate suspicious pattern.

What counts as warming up

• Real conversations with people you already know (family, friends, business contacts).
• Received messages — number that only sends, without receiving, is suspicious.
• Audios, photos, videos — range of message types.
• Daily use consistent for 7-14 days minimum.

Typical warm-up schedule

Day	Activity
1-3	Add 10-30 own contacts. Casual conversations.
4-7	Increase to 50 contacts. Exchange audios and photos.
8-14	Conversations with real customers. Up to 100 messages/day received + replied.
14-30	You can start sending small messages (50/day) with a random cadence.
30+	sending messages up to 200/day, still with cadence.
90+	"Mature" number. Up to 500/day, but always with safety rules.

Unheated Number Signs

• Frequent "Undelivered" messages.
• Profile photo or status disappearing.
• WhatsApp Web disconnecting by itself.
• Account restricted (temporary blocking).

See: bulk messaging with less risk of bans.