Set distance programmatically

How can we set the beacon enter and exit region distance Immediate, Near, Far programmatically?

Hey Raj—enter and exit will always get called as soon as the device enters/exit range of the beacon, I'm afraid there's no way to get enter/exit notifications when entering/exiting specific proximity zones (such immediate or near).

You can however use the Estimote app to adjust beacon's broadcasting power to manipulate the range of the beacon itself.