Use this if you still run WAClient 3.x on WHMCS and need the new WAClient Connector. This is a clean replace — not an overwrite of the old folder.

1. Create the connection in WAClient

In WAClient open Integrations → WHMCS, add a connection (Web or Cloud), pick the WhatsApp account(s), and save. Keep the Connection ID and Secret for later.

WHMCS-08-25-2026_05_17_PM.png

Details: Connect WHMCS to WAClient · WhatsApp Web vs Cloud for WHMCS

2. Copy templates into Hub

Keep the old 3.x module open in one browser tab. In another tab, open the new connection in Hub → Client templates, Admin templates, and OTP.

Copy each customized message from 3.x and paste it into the matching Hub template, then save. When you paste, update variables:

  • {invoice_payment_link} → {invoice_link}
  • {invoice_direct_link} → {invoice_access_link}
  • {quote_direct_link} → {quote_access_link}
  • {ticket_direct_link} → {ticket_access_link}

Details: Set up WHMCS notification templates

3. Deactivate the old module

  1. WHMCS → Addon Modules → old WAClient → Configure.
  2. Tick: Tick this box to delete the module database tables during deactivation (including stored client mobile numbers and preferences).
  3. Deactivate.

WHMCS-Addons-08-25-2026_05_12_PM.png

4. Delete old files

Remove:

  • modules/addons/waclient/ (entire folder)
  • From WHMCS root, if present: cart_restore.php, secure_invoice.php, secure_quote.php, secure_ticket.php

Screenshot 2026-08-25 194221.png

5. Install the new Connector and connect

  1. Upload the new modules/addons/waclient/ folder.
  2. Copy redirect.php and restore.php from the package into the WHMCS root.
  3. Activate the addon → paste Connection ID + Secret → Connect.

WHMCS-WAClient-Connector-08-25-2026_07_47_PM.png

Full install steps: Connect WHMCS to WAClient

6. Finish setup

Complete the remaining guides for this connection: