This should have taken me 5 minutes and after 1.5 hours of trying different things I still can't seem to understand why this url hack doesn't work
The code below just pre-populates the 1 contact 2 account 3 and the current user.
The first two work fine however the current user doesn't make it into the custom lookup field. I rechecked the ID of the field. It is correct. What am I missing?