To post changes to some types of placement settings for a campaign, you can upload a spreadsheet that you previously downloaded and have edited. Changes are allowed only in the editable columns.
To make more extensive changes to placement settings, use the bulk edit feature.
In the main menu, click Campaigns.
Do either of the following:
Next to the campaign name, click … > Upload Excel QA sheet.
Click the campaign name to view the campaign details. In the upper right, click … > Upload Excel QA sheet.
In the Edit in Excel dialog:
Either drag and drop a file into the box, or click inside the box to select a file from your device or network.
(Optional) To verify that the updates were processed, click in the right of the top menu bar.