I have an eVar with Allocation - Most recent(Last) & expire after "Purchase" event. So my question is how long eVar will persist if purchase event is not happening in the same visit.
Also if new eVar value is generated then old eVar value will get the allocation or new eVar value.
The evar value will persist until the purchase event occurs. Also, with the Most Recent (Last) allocation, the last (new) evar value will get credit for the purchase event.
So, if evar1 captures the following in the order -> A -> B -> C -> purchase event
Then, C will get credit for the purchase event.
Hope this clarifies!