WhatsApp messaging limits and quality rating, explained

Your WhatsApp number carries two things most businesses discover only by hitting one: a messaging limit that caps how many people you can start conversations with, and a quality rating that moves on its own based on how recipients react.

They interact, and the interaction is where accounts get into trouble.

Messaging limits

New numbers start restricted and earn their way up in tiers as you send consistently to people who do not object. The mechanics are Meta's and they change, so check the current tiers in your Business Manager rather than trusting a number in an article.

Two practical consequences:

• You cannot buy your way past the first tier by having a big list. A brand new number and a 200,000-contact database is a bad combination — plan a ramp.
• The limit counts conversations you start, not replies. Customer-initiated conversations do not eat into it, which is one more reason to make it easy for people to message you first — it is cheaper too.

Quality rating

A score derived from how recipients respond — principally blocks and "report" taps, weighted by how recent they are. It sits at green, yellow or red, and a sustained red gets your number restricted.

What actually moves it down:

• Messaging people who did not expect it. The single biggest cause. A purchased list will do this within one send.
• Frequency. Three marketing messages in a week from a business someone bought from once is a block.
• No easy opt-out. If STOP is not obvious, block is the next best button.
• Mismatch. They opted in for order updates and got promotions.

The pattern that gets numbers restricted

It is nearly always the same sequence. A campaign goes out to a large, old, loosely-consented list. Blocks spike. Quality drops to red. The limit is cut. Now the legitimate messages — order updates, appointment reminders — start failing too, and that is what finally gets noticed.

The damage is not to the campaign. It is to the transactional messaging you depend on.

Protecting the number

1. Segment before you send. People who have interacted in the last 90 days behave completely differently from a two-year-old list.
2. Put the opt-out in the message. Reply STOP, honoured automatically. Cheaper than a block in every sense.
3. Cap marketing frequency and enforce it centrally, so three teams cannot each send their "one" message in the same week.
4. Watch quality after every large send, not monthly. Yellow is a warning you can act on; red is a problem you have.
5. Keep transactional on its own number if marketing volume is high. Then a marketing mistake cannot take down your order confirmations.

That last one is the most under-used protection available, and it costs one extra number.

If you are already at red

• Stop all marketing sends immediately. Not reduce — stop.
• Keep utility and service messages running; they are what rebuilds the score.
• Work out which send caused it. It is almost always identifiable and almost always a list.
• Wait. Ratings recover on rolling recent behaviour, so the only real cure is a period of sending only to people who want it.

Opt-outs should live on the contact, not the campaign, so someone who says stop is removed from every future send rather than one — the same principle that applies to calling.