Notes from real client work
Hard-won lessons from shipping WHMCS modules, securing servers, and automating hosting businesses - written so you can apply them today.
Dunning is not just three reminder emails any more. AI billing intelligence picks the right retry hour, the right channel, and the right discount for each customer — and recovers payments that hard rules miss.
Configure WHMCS to behave as a SaaS billing system — subscription plans, configurable options, trials, dunning, prorated upgrades, usage-based billing. Working examples from real client builds.
Your invoice is the most-seen artifact in your billing. The practical guide to branded PDF templates, tax-compliant fields, customized invoice emails, and on-page invoice views.
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