Login using account.samsung.com

My app is using login via samsung login i.e account.samsung.com and I want to integrate smartthings that also uses samsung login but I want to login with different account in my app and smartthings.
But currently smartthings autologins with the account that was logged in first.
Is it possible to login with two different accounts ?

Just have two Samsung Accounts and log out of the one on SmartThings and back into using the new one. If it wants to use the older one clear your browser cache and try again.

Samsung Developer Relations