Microsoft Teams Notifications For WHMCS

Microsoft Teams Notifications for WHMCS is a notification provider that delivers rule-based WHMCS alerts straight to your Microsoft Teams channels. It plugs into the native WHMCS notification system, so it appears next to Email and Slack under Configuration → System Settings → Notifications. It works with the current Teams Workflows trigger URL as well as legacy Incoming Webhook URLs, with no bot registration, no Azure application, no database changes and no addon activation.

Compatible with WHMCS 8.13+ and 9.x.

The Problem It Solves

WHMCS already knows when an invoice is paid, an order is placed, a ticket is opened or a service is suspended. But your team only finds out if someone is watching the admin area or an inbox.

Teams-based support and billing staff often miss these events, or rely on email rules that bury them. Microsoft also retired Office 365 connectors in Teams in May 2026, so older webhook-based integrations need a move to Workflows. This module solves both problems. It puts the right alerts in the right channel at the right time, and it supports the current Microsoft method.

What the Module Provides

The module turns WHMCS events into formatted alert cards inside Teams. WHMCS notification rules decide which event fires, which conditions apply and which provider receives the message. The module then handles the rest: it validates the webhook URL, builds a safe card, keeps it under the Teams size limit, retries without the optional action if Teams rejects the card, and removes the webhook token from logs.

A billing rule and a support rule can post to separate Teams channels while sharing one provider setup.

Features

Delivery

• Native WHMCS provider, so events, conditions and rules stay inside WHMCS
• Works with Teams Workflows trigger URLs and legacy Incoming Webhook URLs
• Per-rule webhook override to send a rule to a different channel
• Three message formats: Message + Card, Message only and Card only
• Per-rule theme color with three- or six-digit hex values
• Optional card header name and icon inside the card
• Attributes such as client, invoice, service and department shown as card facts, with links back to WHMCS
• Optional View in WHMCS button, with options to hide attributes and the link
• Connection test when you save the provider

Reliability

• Card size kept under the Teams 28 KB limit by trimming content in order
• Markdown-aware truncation that closes unfinished code blocks
• Retry without the View action if Teams rejects it, or strict delivery if you prefer failures to be visible
• Clear, administrator-readable errors for HTTP 400, 401, 403, 404, 410, 413, 429 and 5xx responses, plus DNS, connection, timeout and TLS failures

Security

• HTTPS only, with TLS verification and no redirects
• Host allowlist for Teams and Power Automate domains, with an optional custom host setting
• Webhook token and Workflows signature redacted in module logs
• Mentions such as @everyone and @here neutralized so notification text cannot ping the channel
• No client data stored by the module

Easy to Run

• No database changes, no core file edits and no addon activation
• Existing rules and settings kept when upgrading
• Eight-page documentation manual with installation, settings, security and troubleshooting guides