Raising a User Decision Result Externally

[Wall, John MJ SITI-ITDSEA]

Dear Workflowers.
 
I am currently on 40B and am sending a user decision to a user but I also
want to control this externally tricking workflow into thinking that the
user has pressed one of the user decision options (001-Approve, 002-Reject).
Does anyone know a function module that would do this?
 
Kind Regards
John Wall
Mob: +31 6 4801-2251,  Email: johnwall at iname.com