What details do I need to connect Razorpay?

With the Online Payments plugin active, tick Razorpay in the Payment Gateways box and click Save gateways. Then click Configure on its row:

1. Enter the Test Key ID and Test Key Secret, and the Live Key ID and Live Key Secret, from Razorpay's API Keys page.
2. Set Live / Sandbox. Only the keys for the chosen mode are required.
3. Pick Supported Currency: INR, USD or both.
4. Fill in Webhook Secret. The form says optional, but WCart marks a Razorpay order paid only when Razorpay's webhook (payment.captured or order.paid) arrives signed with this secret. The page doesn't show the webhook URL to register, so ask WCart support for it.
5. Set Status to Active and click Submit.

At checkout, Razorpay opens as a pop-up on your checkout page. Secrets are stored encrypted. When you edit later, leave a secret field blank to keep it.