Troubleshooting
PayU is not shown at checkout. Check that the payment method is active, that the Merchant Key and Salt are filled in, and that its Restrictions tab does not hide it for that order (order total, state or shipping method).
"Hash mismatch" or the PayU page shows an error. The Salt does not match the Merchant Key, or test keys are used in live mode (or the other way round). Copy both again from the PayU dashboard and check Environment.
The customer paid but the order is still pending. The customer probably closed the page before returning. Make sure the Webhook URL from the payment method form is saved in your PayU dashboard. You can also check the transaction in PayU and update the order yourself.
PayU's page shows a different business name. The name on PayU's page comes from your PayU account, not from CartWhizz. Change the display name in your PayU dashboard or ask PayU support.
Money did not arrive in your bank. Settlements are run by PayU. Check the settlement report in your PayU dashboard or contact PayU support.
Still stuck? Ask CartWhizz AI in your admin ("why is PayU not showing at checkout?") or contact CartWhizz support from Help.