I am using SP web services (usergroup.asmx.GetUserCollectionFromSite()) to get the user IDs of users that I am programmatically adding to a usermulti field in a list.
Apparently this is not the user ID that is used in the User field as it ends up mapping to a different user.
Example:
My ID from GetUserCollectionFromSite() is 26.
If I programmatically look at a list with my username in it, it is:9;#My.UserName
Where does the ID part of the User Field come from?
