Documentation

Everything you need
to get it done

Guides, references, and troubleshooting for VTUmax — updated regularly.

Knowledge Base

6 articles across 5 categories

Plugin

Getting started with VTUmax Pro Plugin

Learn how to install, activate, and configure the plugin on your WordPress site in under 10 minutes.

5 min read·2,840 views
License

How domain whitelisting works

Understand how your license key validates domains, propagation timing, and how to add or remove slots.

3 min read·1,920 views
Plugin

Troubleshooting activation errors

Common causes for activation failures and how to resolve them, including Nginx, Apache, and cPanel setups.

7 min read·3,105 views
Add-ons

Bulk SMS limits and quotas

A breakdown of per-plan send limits, rate throttling, and how to request a temporary quota increase.

4 min read·987 views
Billing

Upgrading from Starter to Pro

Step-by-step migration guide covering license transfer, data retention, and feature unlocks.

6 min read·1,456 views
API

Setting up webhook callbacks

How to configure REST API webhooks for payment events, transaction status changes, and error alerts.

8 min read·762 views