CRPRO Blog
Guides, product updates, and practical tips for sales and support teams.
The WhatsApp anti-ban playbook — reply inside the window, favor conversation over templates, split replies into short human-paced messages — stopped being free on October 1, 2026. See the cost scenarios at 1,000, 10,000, and 50,000 conversations a month, and why service messages get no volume discount.
Most WhatsApp bans aren't caused by sending too much — they're caused by sending to someone who never authorized it. See what a valid opt-in requires, the content categories the policy bans outright, what actually triggers a report, and why the same violation ends differently on the regular app versus the official API.
30 copy-paste WhatsApp templates for recovering an abandoned cart, organized by payment situation, plus the four rules that keep a good template from burning the list and the one mistake — charging someone who already paid — that has no way back.
BRL billing removes daily exchange-rate swings and foreign-currency operating costs from your WhatsApp API bill — but it doesn't freeze the price and doesn't touch October 2026's new charges. See the two billing arrangements, the dates that matter, and a checklist to switch without mixing it into the October effect.
Evolution API wraps Baileys, the unofficial library that speaks the WhatsApp Web protocol, in a REST layer. It pays off for a secondary number or an internal use case with someone on call. It becomes a problem the moment you hang the company's main number and revenue on it. See the real cost comparison and when each path holds up.
Volume isn't a crime under Brazilian law; content can be. See how a Meta ban, an LGPD administrative fine, and criminal liability are three separate tracks, what legal basis you need before sending, and why consent you already have probably doesn't hold up.
Bulk sending through the official WhatsApp API turns some ban causes into an API error you see before the damage, and puts a gauge on the number — but it doesn't remove the two causes that take down the most numbers. See the mechanics piece by piece, from template approval to messaging tiers to the October 2026 pricing change.
There's no authorized path to bulk-send to WhatsApp groups: the official API only accepts individual phone numbers. See what "group bulk sender" tools actually do, why extracting group members violates data protection law, and the four real alternatives that don't risk the number.
The software is free; your number is the collateral. See how free WhatsApp bulk senders work under the hood, how Meta's detection signals actually behave, what the official API gives you that they don't, and what to do instead.