To test the Funnel or a Product Live, your product must be approved and the funnel must be VALIDATED. Follow the below steps:
1. Edit the product and make the purchase price as $1.
2. Under "Offers" tab, go to "List Product in Offers and Find Products", select "No, Keep it Private" and click on "Save" button.
3. Go to your Sales Page and click on Buy Now button and purchase the product.
Note: Do not purchase from the same PayPal account which you have connected with your PayDotCom account. If you do, it will throw an error.
4. After you test it, revert the changes. You can refund the test purchase.