Each advertiser can have up to 30 label classifications.
Click Search > Campaigns > Label Classifications.
In the toolbar above the data table, click .
Enter a unique label classification name, and then click Save.
The name must be unique for the advertiser account and consist of ASCII characters 32-126, and the maximum length is 27 single-byte characters. The name can’t be identical to the name of an existing report column or an existing bulksheet column. See the names of bulksheet columns for Baidu, Google Ads, Microsoft® Advertising, Naver, Yahoo! Japan Ads, Yahoo! Display Network, and Yandex.
Once you create a label classification, you can create specific label values for the classification and assign the label values to account entities from the campaign management views or using bulksheets.