eBay currently has two different types of payments, namely;
1/ Paypal Payments (old)
2/ Managed Payments (new)
A2X currently integrates only with eBay Managed Payments, therefore if you have not enabled eBay Managed Payments, A2X will unfortunately not be able to detect any of your sales data.
Please note that A2X does not pull history related to the older PayPal settlements.
Here is a summary of eBay Managed Payments.