It should also be noted that the COS bonuses are for revenue tickets originally booked into those buckets. If you used any upgrade instruments like an SWU, you would earn on the underlying fare class purchased, not the upgraded fare buckets.

Economy Buckets B*, O, Q, 25%
Economy Buckets N, S 50%
Economy Buckets G, V 75%
Economy Buckets L, M, K, H, Y 100%

B* is Basic Economy. AA BE fares, 500 EQM minimum, started earning EQM/RDM in Mileage Plan when AS Saver X was reduced to 30% EQM, no minimum. I do, however, recall a few datapoints where they didn't post automatically to Mileage Plan and required a follow-up call to AS.

James