ORA-24080: unschedule_propagation pending for QUEUE string and DESTINATION string
Cause : A propagation administration command was issued for a queue and destination pair whose propagation is being unscheduled.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Do not issue propagation administration commands for a propagation schedule on which there is a pending unschedule request.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.