The Primary User of each account has access to everything in the system. There is only one primary user for each account. This master profile -- or super user -- has the power to add and delete users, provide and take away store access, and grant or revoke users' permissions.
Updating the primary user
1. Log into app.GoDataFeed.com with the credentials of the Primary user
2. Go to Account > Settings, you will land on the Contact Info tab. Update the Primary email address field and click SAVE.
You will see the 'Owner' User under the Users Menu updated with the new address.