Originally Posted by
RichardKopf
Second, SPG points/status are definitely earned if you booked through any travel agency in the world, as long as that agent makes the reservation i their CRS/GDS (global distribution system).
Trailfinders (UK) definitely don't work this way. I've used them a fair bit, including a few of Starwood properties. In all cases, the stays were refused by SPG as ineligible due to being booked through a 3rd party.