How to call additional Enrolment page from SAP Logon?

Hi Team,

I have a requirement here to customise the SAP logon page.

My requirement is, when a user logins in with his User ID and Password and when he clicks Logon then it should redirect to my Enrollment page(only for the first time login for certain users) and in the enrollment page we got some additional fields to be captured for security reasons and that fields will be stored in our local database and then it will pass the control back to my SAP application.

Is there any method where we can call the additional enrolment/registration page from SAP Logon.

Thanks in Advance

Regards

Akesh