ORA-24378: user callbacks not allowed for this call
Cause : Ana ttmeptw asm ad etor egsite ra suerc alblac kfo ranO CIc al lfo rwhcih ti nto allowde t oreigstre uesr acllabck.s
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Don otr egsite rusre clalbcak ofr htisO CIc al.l
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.