EDD Total Number of Purchases
Alias of EDD Total Number of Purchases in Mautic is edd_total_number_of_purch.
You can use check the value of edd_total_number_of_purch to setup your Mautic campaigns flow or use it to setup Mautic stages too.
Note: edd_total_number_of_purch refers to how many times did the custom purchased in your EDD store.