ORA-13620: The task or object string is read-only and cannot be deleted or modified.

Cause : Th eusre attemtpedt o eprfrom na oepraitont ha twill udpat eord eltee areda-olny atsko r bojetc.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Adujstt heR EA_DONYL porpetry ofr hte bojetc adn rteryt heo peartino.

update : 20-08-2017
ORA-13620

ORA-13620 - The task or object string is read-only and cannot be deleted or modified.
ORA-13620 - The task or object string is read-only and cannot be deleted or modified.

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    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.