I appreciate the angst in this thread regarding LTPP versus LTP. I appreciate if someone can help me with my slightly less-important question.

Does anyone know a way to find out your history of status with Marriott? I have 8 years PLAT with SPG - each year I work hard to make sure I get to PLAT by often picking an SPG stay even though not most convenient. What I believe is if I have 2 years of Marriott PLAT and 600 total nights across the two historically, then on Aug 1 I will map to Lifetime Plat. I can see the night counts online for both Marriott & SPG, but since SPG is primary I really have no idea what status I've had over the years with Marriott.

How do I find that out? Thank you!