Low Credit Balance Notification

Colonelserver Auto Credit Balance Notification

The Colonelserver Auto Credit Balance Notification addon automatically notifies your WHMCS clients when their credit balance falls below a defined threshold.
It helps prevent service interruptions by reminding clients to top up their accounts in time.

Key Features

Sends automatic email alerts when credit is low
Uses your selected WHMCS Email Template
Runs automatically via the Daily Cron Job
Clients can choose which contact email receives alerts
Admin tools for Dry-run and Force-run testing
Custom cooldown period to prevent repeated alerts
Fully compatible with WHMCS 8.x and PHP 7.4–8.3

How It Works

Administrator sets the credit threshold and selects an email template.
Each day, the addon checks all active clients.
If a client’s credit is below the threshold, the addon sends the selected email.
Clients can manage which contact email should receive notifications in their Client Area.

Benefits

Reduces unpaid invoices and suspensions
Increases customer satisfaction with proactive communication
Keeps your billing system running smoothly and automatically

Technical Details

Database table: cs_credit_notify_prefs
Hook: DailyCronJob
Merge fields for your template:
- {$credit_balance}
- {$credit_threshold}

Developer: Colonelserver
Category: Automation / Client Management
License: Lifetime, one-time purchase
Supported WHMCS versions: 8.0+
PHP Compatibility: 7.4 – 8.3

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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