ORA-32826: Messaging Gateway agent has already been started

Cause : An attempt was made to start the Messaging Gateway agent when it is already started.

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

No action required.

update : 22-08-2017
ORA-32826

ORA-32826 - Messaging Gateway agent has already been started
ORA-32826 - Messaging Gateway agent has already been started

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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.