This Trick Which Can Allow You To Get Profile Id Of Somebody United Nations Agency Got Custom Username. Check Below Image And See However Universal Resource Locator Of Facebook Profile Looks Before And When Custom Username.

 In Case Of Profile ID Before Custom Username You'll Simply Determine It By Observing Profile URL But In Case Of Profile With Custom Username It's Not Same. Below Some Easy Steps To Seek Out Profile ID Having Custom Username.

Go TO  Facebook Profile You Want To Find Profile ID

That URL Will Look Like This {www.Facebook.com/Username}

Change That URL To Graph.Facebook.com/Username

Then You'll Get Something Like Below Image.

You've  Done ! ID Is Just In Front Of You...