What was SPS ID for?

[JerenSoon]

With latest update, I found up there's another ID besides PlayFab ID (which used as Security Measures).
Going to ask what was SPS (Sad Panda Studios) ID was for? I was thinking if that was related to Verification Key or something (Like Mobile Version sync or Crossover Event Verification...)

[Sad Panda Studios]

The SPS ID is just like the Playfab ID, which is tied to our backend service so we can do troubleshooting/fixing your game if you write into support, etc. We wrote our own backend service to shift away from using playfab because it's really expensive. Soon it'll just be the SPS ID on steam and when we release the mobile version. So that's why there are 2 IDs for now :)