To deactivate/reactivate a Product Group, please follow the below steps: 

1. Click on My Account in the top right corner of the home page
2. Navigate to the Products & Services tab 
3. Click on the Product Groups tab 
4. Select the Product Group you would like to deactivate/reactivate
5. You will automatically be taken to edit the group
6. Click on the Deactivate/Reactivate button
7. Confirm the deactivation/reactivation
8. The group has now been successfully deactivated/reactivated 

Please note: You will need to have Customer Self Service enabled and have the correct user permissions to do this.