Interswitch OAuth concept

It is always a smart decision to keep customer information within an ecosphere central e.g how you can easy use your Gmail login credentials to access Google Drive simply because user sign-in is centralized. Interswitch, Africa's leading integrated payment and digital commerce platform would simplify customer onboarding immensely if they had this.

Thought to come up with a concept for outboarding a customer on sign out. What do you think?