Flash Action is an action executed among a multiple PrestaBay products/listings. Main benefits of Flash Actions that it’s performing ebay operation very fast. For example, send 400 products to ebay will take around 3 minutes.
To help you understand better how PrestaBay “Flash Actions” work we create a video where when try to send 400 product to ebay.
Link to video — https://www.youtube.com/watch?v=_xuKbRb7VZM