Different menu links depending on user account I need to create menu that has to be diffrent for each user.

/user/%username%
/user/%username%/purchases
etc.


Is there way to do something like that? Thanks
Yes . You can use  Menu Token. (Menu Token module provides tokens, that could be used in title or in path of menu items. For example, if you create a menu item with path: "user/[current-user:uid]", the url will be changed "on fly" to: "user/1" )