How to send bulk WhatsApp messages without getting banned

The fastest way to lose a WhatsApp Business number is a big, cold broadcast. The good news: bans are predictable. Numbers get restricted when recipients block and report them, and people block messages they didn't ask for. Everything below is about not giving them a reason.

1. Use the official API — never "WhatsApp blasters"

Tools that automate the regular WhatsApp app (browser extensions, "unofficial APIs", tools that scan a QR code) break WhatsApp's terms and get numbers banned outright. Bulk messaging should only go through Meta's WhatsApp Business Platform (Cloud API) with approved templates. Setup guide.

2. Only message people who opted in

Meta requires that people agreed to receive WhatsApp messages from you. Good ways to collect opt-in:

• A checkbox at checkout or sign-up ("Send me order updates on WhatsApp").
• A "Chat with us on WhatsApp" button — people who message you first can be answered.
• Asking in an existing conversation.

Bought, scraped or "found" lists are the number-one cause of bans. Old lists are risky too — people forget they signed up.

3. Honour opt-outs instantly

Make it easy to stop, and stop immediately when asked. Replies like STOP or UNSUBSCRIBE must remove the person from every future broadcast and sequence — not just the current one. Someone who's ignored after saying stop will report you.

4. Warm up new numbers

A brand-new number sending 250 messages on its first day looks like spam, even with opted-in contacts. Ramp up:

Day of bulk sending	Suggested cap
Day 1	50
Day 2	100
Day 3	200
Day 4 onwards	your Meta limit

Start with your most engaged contacts (recent customers) — their replies and reads build your quality rating.

5. Stay under your messaging limit

Meta caps how many unique people you can message per 24 hours (messaging limits explained). Pace sends across days instead of hammering the limit, and don't send everything at 2 a.m. in the recipient's time zone.

6. Make every message worth receiving

• Personalise — use the customer's name and something specific to them.
• Be relevant — segment by what they bought, where they are, what they asked about.
• Don't over-send — a few well-timed messages beat a daily blast. Meta also limits how many marketing messages a single person receives from all businesses.
• Say who you are in the first line.
• Give an easy way out ("Reply STOP to unsubscribe").

7. Watch your quality rating

After a broadcast, check your number's quality rating in WhatsApp Manager. If it drops to yellow, pause marketing sends, review who you messaged and what, and resume slowly.

A pre-send checklist

• Everyone on the list opted in to WhatsApp messages from you.
• Opted-out numbers are removed.
• The template is approved and relevant to this group.
• Today's volume is within your warm-up/limit.
• The message identifies you and says how to opt out.

How SendFromChat enforces this for you

• STOP/START handling is always on — opted-out numbers are blocked from every future bulk send, sequence and template, automatically.
• New numbers are warmed up (50 → 100 → 200, then your limit) when you tell us the number hasn't sent in bulk before.
• Every send is paced under your 24-hour limit; the rest waits for tomorrow instead of failing.
• You see real rendered messages for real contacts before anything sends, plus how many go out today.
• Drip sequences stop automatically when someone replies, so a person can take over instead of a bot talking past them.