Assign User

I have a button that is working 99% of the way but i would like to add a specific user out of my list when i press the button it loads the task with the following code:

URLRoot() & "db/" & [_DBID_TASKS] & "?a=API_GenAddRecordForm&_fid_10=URLEncode(Thomas, Tyler)&_fid_15=Customer Service&_fid_8=Welcome Call&_fid_14=" & URLEncode ([Phone Number])& "&z=" & Rurl()

It is not however assigning the lead to my agent Tyler Thomas in the system as Thomas, Tyler. I know that QB has a special function for users but i cannot find a way to make it another user other than the person that is currently looking at the file. How would i do this?

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Benjamin Brooks
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