The identifier that an engine creates and assigns to an ad group. Note that Search Ads 360 creates its own ID for each ad group that it manages.
If you use bulksheets to edit or add ad groups and other items in Search Ads 360, use the Search Ads 360 ID to refer an ad group, not the engine's ID.
Add this column to a report-
Navigate to an advertiser and click the Ad groups tab.
Optionally navigate to a lower scope and click the Ad groups, Ads, or Keywords tab. -
Click the Columns button above the performance summary graph.
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Next to Available columns, type the column name in the search box and press the Enter key.
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Click + next to the column name in the Available columns list.