Change password on SAPR3 user

Hello,

I got request from our Security department to change the standard password of user SAPR3 to other different password.

Can you tell me is this the right procedure?

ALTER USER SAPR3 IDENTIFIED BY sap;

When I tried to change it using the Oracle Enterprise manager, after I got many logs in SM21 transaction:

"> ORA-01017: invalid username/password; logon denied

Database error 1017 at UPD access to table SWT_LOGCAT"

Or there is another way of changing this password without providing error message?

Thank you in advance.

Many regards,

Ruzica