Hi pallavi gautam,
The Automatic Configuration URL is composed of two things:
Your server + /.well-known/openid-configuration
For example, if my server from Okta is this one (it could be something else in your case):
This would be my complete URL:
After that you can click on import configuration.
I hope that solves your question, if it helps please mark the answer as accepted, best regards!
In addition to what Oswaldo has written: Different ID providers might have different endpoints (URL) for this task. For example my App uses the Siemens MS Entera OAuth and it looks like in picture. You have to talk to your IdP if you can’t easily find it. Who is your IdP?
It is by choice. If you have all the necessary data then you can proceed by entering those in the fields.
But mostly if you have the Configuration URL then you can provide the same. For e.g. we are using Microsoft as provider, so we have the URL as "https://login.microsoftonline.com/<TENANT_ID>/v2.0/.well-known/openid-configuration"
And there are other providers which also has this configuration endpoint which can give you all the required data for the field. Hope this helps.