With progressive profiling, you can prompt a user for information to be added to their profile after the initial registration step. For example, you could prompt users to add their mobile phone number the next time they sign in.
You can use progressive profiling to minimize the amount of information you request during initial registration. After registration is complete, you can require or request additional information from the user.
You can also set up multiple progressive profiling steps within the same authentication policy to separate the steps by priority or by type. For example, the first step might request a single higher priority item, like a mobile phone number, with a more frequent prompt. The second step might request more lower priority items, with a less frequent prompt. You can set up each item to be required or optional.
For more information, see Adding an authentication policy.