To clarify, are you running into this error when authorizing an already existing app, or when you attempt to install your own app? If it’s on an already existing app, please try this:
log out completely --> clear your browser cache --> log back in --> authorize the app
Let me know—thanks!
Will
I have create a new app named OEP. I am facing this issue with my own app.
Hi @anisha.m,
Can you please share the install URL from your app? It looks like the link you shared previously is for authorizing the app afterwards. You can find the install URL in your app, in the Submit section.
Thanks,
Will
Hey @anisha.m,
It looks like this is working now:
I’m not getting the invalid redirect error — are you still experiencing this? If so, please provide the steps to reproduce. 
Best,
Will
what did you mean by adding https://zoom.us to my Redirect URL??
means `&https://zoom.us"??
redirect URLs suppose to be my site URL right??
https:/zoom.us is just an example—your redirect URL can be any valid https site. This is where the authorization code for step 1 of our OAuth Flow will be appended to as well.
Typically, your redirect URL would be to a landing page or some part of your site.
Thanks,
Will
