Update 1/30/20: This change is being applied retroactively. So even if you booked a meeting/event in 2019 before these changes were announced you’ll still not get the credit. This is a poor way to run a loyalty program as presumably a lot of people wouldn’t have booked with Marriott if this was the case. Sure you’ll ‘catch’ people gaming the system, but at the same time people that actually book these meetings and events are caught up in this change. Hat tip to VFTW
Update: Official terms have now been updated
Hat tip to US Credit Card Guide
Original post: Marriott has offered 10 elite night credits for meetings and events, up until 2018 this could be done an unlimited number of times and then this was changed to one set of 10 elite night credits annually. On January 1st, 2020 this benefit will be removed entirely and you’ll no longer earn 10 elite night credits after your first meeting/event for the year. You’ll still continue to earn 1 elite night credit for every 20 room nights actualized up to a maximum of 20 elite nights per contract. This was an easy way some people were meeting elite night qualification requirements for relatively cheap so it’s not surprising to see this change. Apologies for previously stating this would not be the case.
Hat tip to VFTW (confirmed by memo posted by US Credit Card Guide)

