If a user registered with Sikka software and noticed that s/he entered incorrect zip code during registration.

To enter correct zip code follow below mentioned steps. 

1.  Log on to po.sikkasoft.com with your Sikka login credentials. 

2.  In Optimizer Classic app, click on a human face type icon from top-right hand side and click on 'My Account' button.

3.  Go to 'Manage Practices' section; click on 'Edit' button.

4.  Enter correct zip code and click on update button to save the changes.

Refer below screenshot for more details.