Q:

SharePoint multiple user identities

Can someone explain me please ... why has Sharepoint 2 different user identities for same user (i:0#.w|domain\username and domain\username) ? Because of this I have problem with my custom rights and with others.
Thank you.

A:

i:0#.w|domain\username means this is encoded as claims. More about this encoding check this link.
You can check this article to see how handle this.
Here is a good answer why this happens.
Hope this helps,
Andrew

