Blog

WhatsApp marketing, in numbers — not buzzwords.

Benchmarks, flow recipes, and GDPR updates for Shopify merchants — conservatively calculated, ready to ship.

Meta WhatsApp prices, limits & rules — dated and sourced →

Categories
Keaz cover: choosing between the WhatsApp chat-in widget and the post-checkout number widget
GDPR & Opt-in

WhatsApp Widget for Your Website: Which One to Install

Two widgets, two jobs. One turns visitors into conversations, the other captures numbers after checkout. How to tell which one your shop needs.

Nils Spölgen7 min
Illustration of a WhatsApp message with quick-reply buttons underneath it
Automation

WhatsApp Interactive Buttons: What a Tap Actually Does

Quick replies, link buttons and phone buttons do different things. Only one opens the 24-hour window — and that decides what you can send next.

Nils Spölgen7 min
Keaz cover: what happens when a WhatsApp customer replies STOP to opt out
GDPR & Opt-in

WhatsApp Opt-Out: What Happens When a Customer Replies STOP

What really happens when a customer replies STOP on WhatsApp: where the opt-out is recorded, what ignoring it costs, and how opt-in levels control every send.

Nils Spölgen6 min
Keaz cover: how Meta categorises WhatsApp message templates and why approval is not permanent
Basics

WhatsApp Message Templates: Categories, Approval, Rejection

Marketing, Utility or Authentication — Meta decides your WhatsApp template category, can change it after approval with one day's notice, and that sets the price.

Nils Spölgen8 min
Keaz cover: what the WhatsApp Cloud API is and when a Shopify store is better off with a provider
Basics

WhatsApp Cloud API: What Running It Yourself Takes

What the WhatsApp Cloud API gives you, the Meta assets and limits it documents, and why for most Shopify stores the build costs more than the API itself.

Nils Spölgen10 min
Keaz cover: which WhatsApp age requirement applies to a personal account and which to the Business app
GDPR & Opt-in

WhatsApp Age Requirements: 13 for Personal, 18 for Business

WhatsApp's age requirements are 13 for a personal account and 18 for the Business app. What the error means, where the age comes from, and how to fix it.

Nils Spölgen9 min
Keaz cover: whether a Shopify shop can use WhatsApp in a GDPR-compliant way
GDPR & Opt-in

Is WhatsApp GDPR-Compliant? What Shops May and May Not Do

Is WhatsApp GDPR-compliant? The GDPR does not certify apps. What matters is which WhatsApp you run and how you collect and document consent.

Nils Spölgen6 min
Keaz cover: counting support tickets before choosing a Zendesk alternative
Inbox

Zendesk Alternative for Shopify: Count Tickets First

Before you shortlist a Zendesk alternative, count 30 days of real contacts and sort them. Most Shopify stores need fewer tickets, not a cheaper desk.

Nils Spölgen6 min
Keaz cover: why a connected WhatsApp Business account can still be blocked from sending
Basics

Why Your WhatsApp Business Account Is Blocked From Sending

Your WhatsApp integration still shows connected but nothing goes out. What Meta's health_status BLOCKED means, which part is blocked, and how the appeal works.

Nils Spölgen9 min
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