The Shopping Campaign Builder lets you create campaigns with multiple levels of product partitions with a single click. You can create hundreds of ad groups with thousands of product groups in a few minutes in active campaigns of your account.
The Shopping Campaign Builder creates a new ad group in an existing campaign of your choice, and the product group structure you choose is implemented in this new ad group. The tool doesn't make any change to the current product groups in the campaign.
If you want to change bids for existing product groups, you can use the Shopping Bidder.
In order to use the Shopping Builder to create new ad groups without overwriting the existing ones, you will need to use the same split and prefix for the ad groups name. This will ensure that the system won't override an ad group if one with the same name already exists.
By default, the Shopping Builder will allow you to create ad groups at the first level of selection (Brand).
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