Once your campaign is live, you can edit many components of the campaign without interrupting the campaign's delivery.
Once you have logged into the ads platform, navigate to the Campaigns list by clicking "My Campaigns" in the lefthand navigation menu.
Next, locate the running campaign that you'd like to edit. You can begin the editing process by clicking the kebab menu to the right of the campaign, then choosing "Edit Campaign" from the dropdown menu.
Once you click "Edit Campaign," you will have the option to edit several aspects of your campaign. However, there are certain aspects that are uneditable once a campaign goes live:
Advertiser cannot be changed. If a campaign was launched under the incorrect advertiser you will have to stop the campaign and start over. There is no way to update the advertiser after a campaign has launched.
Campaign Type cannot be edited. If you need to switch between CTV and Streaming Services and Programmatic Video and Display, you will need to create a new campaign.
Audience Targeting will not allow you to change the type of audience your campaign is using. If you launched a campaign with one type of audience, such as an uploaded list, you cannot switch to a different audience type, such as a one-click curated audience. You can only change the details of the audience type you have chosen. If you need to change the type of audience you are using, you should clone your campaign and launch a new campaign or build a new campaign from scratch.