Meta Is Now Controlling When Your WhatsApp Broadcasts Land — Here's What Changed

For years, WhatsApp Business API let you send campaigns to your entire list at once. That model is over. Meta has rolled out Portfolio Pacing globally — and it changes how every broadcast campaign works from the moment you hit send.

What Portfolio Pacing actually does

Instead of releasing your campaign to all recipients immediately, WhatsApp now sends messages in controlled batches. After each batch, Meta reads engagement signals — were messages opened, replied to, reported as spam?

If signals are healthy, the next batch goes out. If blocks or spam reports spike, delivery pauses. In some cases it stops entirely. You may never know that a portion of your list never received the message.

What triggers a pause

High volume in a short window is the primary trigger — regardless of template type or quality rating. A number that suddenly sends at a volume it has never sent before is considered high risk by Meta's system.

The practical implication: having a high messaging limit does not guarantee instant full delivery. A verified number with a 100,000 per day limit can still have a campaign paused mid-send if the engagement signals deteriorate.

The limit structure got better at the same time

Meta removed the old tiered ramp-up structure. Previously, new API numbers started at 1,000 messages per day and had to earn their way through 10,000 and then 100,000 over weeks of demonstrated quality. That probation period is gone.

Complete Meta's Business Verification and your number goes straight to 100,000 messages per day from day one. No waiting. The ceiling rose significantly while the floor was removed.

How to send campaigns that pass pacing checks

Warm up volume gradually on numbers that have not sent at scale before. Start with your most engaged segment, not your full list.

Smaller, targeted sends consistently outperform large blasts under the pacing model — both in delivery reliability and in the engagement signals that determine whether the next batch goes out.

Monitor quality signals after every campaign. If block rates are rising, fix the content and targeting before the next send. Catching it early prevents the kind of cumulative quality degradation that takes months to recover from.

Businesses treating WhatsApp like an SMS blast tool will struggle with pacing. Businesses that have been sending relevant messages to opted-in contacts will barely notice the change — their signals were already healthy.