This WHMCS Client Onboarding Script is a simple, admin-facing tool that adds new clients to WHMCS via the API. It’s ideal for teams who want a fast, reliable way to create clients with optional welcome emails, affiliate activation, and automatic ticket creation, without modifying WHMCS core files.
Features
Create clients via the WHMCS API with standard fields (name, email, phone, address, country/state, language, password).
Control behavior from config.php (status, group, welcome email, affiliate, ticket settings, success message, redirects).
Server-side validation, TLS for API calls, and no exposure of admin-only options in the UI.
Optional Cloudflare Turnstile or Google reCAPTCHA v2 checkbox with server-side verification.
Load languages and countries from your WHMCS install; state/region select for supported countries (fallback to text).
Assign new clients to a specific WHMCS client group (admin-controlled).
Set post-creation status (Active, Inactive, or Closed) without exposing this choice on the form.
Customizable opt-in message with Terms/Privacy links, plus optional logging of consent to admin notes and/or ticket.
Option to send WHMCS’ welcome email automatically after creation.
Optionally activate the client as an affiliate upon successful creation.
Optionally open a support ticket containing the website URL and notes submitted through the form.
Configure a success message template with placeholders (e.g., {CLIENT_ID}, {EMAIL}, {TICKET_ID}) and optional redirect.
Be the first to review WHMCS Add Client Form.
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.
1.0.1 — Initial release: client creation, status/group, welcome email, affiliate activation, ticket creation, consent logging, WHMCS dropdowns, password policy & confirmation, captcha support, custom success message & redirect.
Working comfortably with ResellerClub's products and services through your WHMCS system requires additional tools.
The module developed to add meta description and meta keywords and change the page title
This module will integrate WHMCS with Dropbox to upload a copy of WHMCS database onto the cloud. You will never have to worry about losing data any more.
