Zammad tickets inside WHMCS: full Client Area workflow (groups, priorities, attachments, KB hints, service/domain links), optional sensitive-data storage, Six/Twenty-One + Lagom 2 templates, and an admin suite for setup and automation.

Ticket Archive keeps your helpdesk clean and fast: automatically move old support tickets into a dedicated archive with full search, attachment access, restore options, and detailed audit logging.

The Cart Link Generator is an admin-side WHMCS addon that allows staff and sales teams to create pre-filled cart links.

Project Manager for WHMCS covers projects, milestones, and tasks with time tracking, Kanban and Gantt views, PDF hour reports, ICS/Webcal feeds, dashboard health insights, and optional client-area visibility, ideal for hosts and IT service providers.

Internal documentation in WHMCS admin: folder tree, HTML pages & tables, per-client or global scope, templates, File Manager attachments, Draw.io, search, so your team keeps SOPs and notes next to billing.

Financial controlling for WHMCS. Combine revenue with supplier and operating costs to track profit and margins across customers, products and services.

Provision and manage KeyHelp hosting directly from WHMCS. Customers manage domains, e-mail, FTP, databases and SSL in the client area, with SSO, live usage and automated service lifecycle management.

Sell Nextcloud as a hosted service through WHMCS. Offer Shared or Dedicated packages while customers manage their own accounts, storage and upgrades directly from the WHMCS client area.

Sell managed MailCow email hosting through WHMCS. Automate provisioning and let customers manage domains, mailboxes, aliases, spam quarantine, DNS and access directly from the client area.

Turn your WHMCS Client and Admin Area into installable Progressive Web Apps with custom branding, offline support and Web Push notifications for invoices, tickets, orders and service events.