Editing Prebid configuration and Prebid tag
Prebid Configurations in HB Manager is where you will find the Prebid.tag and select which Placements and SSPs to load.
There is a Prebid Configuration in each Website (Publisher accounts -> Edit publisher -> Website) where you can select which Placements and which SSPs you wish to load.
1. Click Prebid Configurations on website settings
2. Select which Websites and Placements this configuration is affecting.
You can also see the SSPs you have mapped to your placements and if needed, turn some of the SSPs on/off.
3. Save
The Prebid tag in this view is the one you will implement in the header of the website.