In yet another piece of bad news for points and miles enthusiasts, reports online are indicating that purchases through the United Mileage Plus X (MPX) shopping app are no longer earning 5x on the Amex Platinum card. This card offers 5x on airfare purchases made with airlines. Purchases through the MPX app have historically coded as airfare purchases for the purposes of coding at 5x with this card, but multiple reports from different sources indicate this is no longer working as of sometime last week.
According to a number of data points in this Flyertalk thread, MPX purchases from around February 10th onward are only earning 1x. This datapoint demonstrates that purchases are still coding as “Travel – Airline”, but are no longer earning 5x — indicating that Amex has likely identified and excluded MPX purchases. This was certainly a valuable way to earn miles for those with an Amex Platinum – it’s too bad to see this one go.