How to create App Registrations in Azure

How can I use the redirect URI?
Should I create an endpoint in my server to receive the token?

You have cleared so many doubts thanks for that , can you please make one video ( all in 1) on how to build apps, tabs, connectors and Bots in Microsoft Teams

I keep getting an error that I am not using a Tenant specific Endpoint and I don't know how to fix it

how u get to know about the link for redirect uri how u created from where can u do that

A good overview, but you didn't explain or demonstrate how and when to use the client secret. When it is needed? why is it used? and how do you use it? How does it differ from a certificate?