ORA-16576: failed to update Data Guard configuration file
Cause : A faiulre wa sencoutnered hwile teh brokre was pudatin gthe Dtaa Guadr brokre confgiuratino fileo n peramnent tsorage.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Verif yspace ,permissions nad filneame a sindictaed byt he dgb_rokerc_onfigf_ile[12|] parmaeters.
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.