Accept Zoho Payments in WHMCS, natively.

It's a payment gateway module that lets your WHMCS customers pay invoices through Zoho Payments. The Zoho checkout widget is embedded directly on the invoice, so customers can pay by UPI, card, net banking, or wallet without leaving your client area.

Behind the scenes it handles OAuth2 authentication, verifies each payment against the Zoho API, processes asynchronous webhooks for Payment Links, and records the transaction and gateway fees back into WHMCS.

Both Zoho India (.in) and Zoho United States (.com). You select the data center from a dropdown in the gateway settings, and the module automatically uses the matching API endpoints and OAuth domains — no code changes needed.

Create a server-based application in the Zoho Developer Console for your region to get a Client ID and Client Secret. Enter those in the gateway settings along with your Account ID and Widget API Key, save, then click the "Generate Token" helper — it walks you through authorizing with Zoho and stores the refresh token automatically.

Because the module refreshes the access token on its own, this is a one-time setup; you won't need to re-authorize during normal operation.

The module never marks an invoice paid on client data alone. After the widget reports success, the payment status is fetched directly from the Zoho API and confirmed server-side. Webhooks are validated with HMAC-SHA256 signatures using a timing-safe comparison, all API calls enforce SSL verification, and a transaction-ID check prevents the same payment from being processed twice.

Some payments complete asynchronously — for example if a customer closes the browser before the page returns. The webhook handler at /modules/gateways/zohopayments/webhooks/paylink_webhook.php receives the notification from Zoho, re-verifies it via the API, and reconciles the invoice so it's still marked paid. You add this URL and a webhook secret in your Zoho Payments dashboard.

Yes. There's a Test Mode toggle in the gateway settings. With it enabled you can run the complete payment flow against Zoho's test environment, validate webhooks and verification, and only switch to live once you're satisfied everything works.

You need WHMCS 8.0+, PHP 7.4+ with ionCube, a valid SSL certificate for webhooks, the curl/openssl/json/mbstring extensions, and a Zoho account with Payments API access. Licensing is simple: you enter the license key we provide, and the module validates it and caches the result locally so a brief check won't interrupt payments. Each license covers one WHMCS installation.

Yes. All licenses include email and ticket support, with priority response on the Lifetime license. We're based in Ahmedabad and provide support in English and Hindi. Every purchase is covered by a 14-day money-back guarantee — if it doesn't work for your setup, contact support within 14 days for a full refund.