Follow these steps
1. Through VTEX settings, choose the option "Gateway Affiliations" and select "ClearSale T".
2. Insert your ClearSale API Key into the "Entity Code" field.
*Note* If you'd like to use your Test API Key be sure to toggle the Test/Live button appropriately.
4. Set "Send Authenticated Transactions" to "Yes"
5. Click "Save" and you're live with ClearSale!
*Note* Remember to enable ClearSale for each of your payment methods!