I had a client added into a workspace, and their account on the azureAD side was deleted due to an issue over at office 365 and we used the same email address. but now when they try to login they get this "To confirm your identity, sign in with the same account you used originally." anyone have any ideas on what's going on here?

I wanted to see if it was possible to replicate what the OpenAI Assistant Chat does but use open router so you can use some of the free models. the loop works but there is no way that i can see to link in any chat history for the model to remember. any thoughts on this?