What is WhatsApp number warm-up?

Definition

Warm-up is the practice of raising a newly linked number's sending volume gradually over its first days instead of starting at full speed. Wapito enforces it with a ladder: a low cap on day zero that rises each day until the plan's normal ceiling takes over, and the ladder is never bypassed for paying customers.

In more depth

A brand-new WhatsApp number that sends a thousand messages on its first day is indistinguishable from a spammer, because that is exactly what spammers do with the disposable numbers they buy. The abuse systems weight recency heavily, so the same volume that is unremarkable from a two-year-old business line will get a day-old line banned. Warming up is the cheapest insurance there is: send tens of messages on the first day, a few hundred by the middle of the week, and full volume only after the number has accumulated real two-way conversations. Wapito implements this as a hard ladder counted from the moment the number was first connected, and a banned premium number helps nobody, so there is no paid exemption from it. Reconnecting an existing number keeps its position on the ladder; linking a different phone number starts a new one from day zero. The most valuable warm-up traffic is genuine inbound conversation, so seed the number with real replies rather than with messages to yourself.

In the Wapito API

On the wire it is the field warmup_day:

{
  "warmup_day": 2,
  "daily_cap": 200,
  "sent_today": 41
}

On the official Cloud API

Meta runs its own quality-based tiering, where a phone number's messaging limit rises as it maintains good quality, so the underlying idea of earning volume over time is not unique to unofficial APIs.

Wapito is an independent product. It is not affiliated with, endorsed by, sponsored by or certified by WhatsApp or Meta Platforms, Inc. WhatsApp is a trademark of Meta Platforms, Inc.

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