By creating a placement, you can specify groups of ad units that an advertiser can target all at once.
A placement contains at least one ad unit. You can assign an ad unit to placements when you first create an ad unit. You can also assign an existing ad unit to placements at any time.
When a user visits your site and requests an ad for an ad unit, DFP Small Business will look up all placements associated with that unit and then look for all line items targeting those placements.
To assign an existing ad unit to placements:
- Click the Inventory tab, then click Ad units in the left-hand panel.
- Click the ad unit that you'd like to assign.
- Next to 'Placements', click Edit.
- Click Add next to the placements that will be associated with the ad unit. Placements that you add will appear below 'Selected Items'.
- Click Save.