Colonelserver Client Birthday Greeting for WHMCS

Automatically celebrate your clients’ birthdays with personalized greetings and exclusive discount coupons!

Make your WHMCS system more engaging and customer-friendly by sending automated birthday wishes directly from your existing email templates.

Key Features

Automated Birthday Detection — The addon scans all your clients daily to find birthdays automatically.
Uses WHMCS Email Templates — Send greetings using your preferred WHMCS email template for full design control.
Unique Discount Coupons — Automatically generates one-time coupon codes valid for a set number of days.
Flexible Configuration — Choose between percentage or fixed-amount discounts and define their validity.
Cron-Based Automation — Works seamlessly with the WHMCS DailyCronJob (no manual action required).
Detailed Logging — Tracks each coupon creation and email event for transparency.
Client Custom Field Support — Uses your selected “Date of Birth” custom field for matching birthdays.

Why Choose This Addon

Strengthen client relationships with personalized communication.
Boost renewals and sales through limited-time birthday rewards.
Fully automated — “set it once and forget it.”
Lightweight, fast, and compatible with WHMCS 7.x and 8.x.

?️ Setup Guide

Upload the addon
Extract the ZIP archive and upload it to your WHMCS path:
Activate it
Go to Setup → Addon Modules → Colonelserver Client Birthday Greeting → Activate.
Configure the addon

Enable the module
Enter the Client Custom Field ID (birthday field)
Specify the Email Template Name (e.g., Client Birthday Greeting)
Choose discount type, value, and validity period

Create your email template
Go to Setup → Email Templates → General and create a template using these merge fields:

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Version Compatibility

Compatible with WHMCS v8.13

Full Version Compatibility

All versions of WHMCS v8.13
All versions of WHMCS v8.12
All versions of WHMCS v8.11
Selected versions of WHMCS v8.10
8.10.0
Selected versions of WHMCS v8.9
8.9.0
Selected versions of WHMCS v8.8
8.8.0
All versions of WHMCS v8.7
All versions of WHMCS v8.6
All versions of WHMCS v8.5
All versions of WHMCS v8.4
All versions of WHMCS v8.3
All versions of WHMCS v8.2
All versions of WHMCS v8.1
All versions of WHMCS v8.0
All versions of WHMCS v7.10
All versions of WHMCS v7.9

System Requirements

PHP 8.1

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Visit Website Contact Support

Developed By Colonel server

Changelog

v1.1.0 Released October 27th, 2025

Latest Version

v1.1.0 — Stable Release

Release Date: October 2025

New Features

Added dropdown in admin configuration to select an existing WHMCS Email Template
Added client area preference page for selecting the recipient email/contact
Added admin Dry-run and Force-run functions
Added cooldown system to prevent repeated notifications

Improvements

Refined cron execution for better performance
Improved database handling and error reporting
Fully compliant with WHMCS 8.x+ API

Bug Fixes

Fixed rare issue where inactive clients were being scanned
Corrected email recipient resolution when using contact emails

Client Birthday Greeting