An advertiser is running one awareness campaign with two ad groups containing static Pins. Each ad group contains its own unique creative assets and is using creative best practices. One ad group is receiving more spend than the other. What should the advertiser do to have more control of the amount of spend towards the other creative assets?

Setting budgets at the ad group level allows the advertiser to directly control the maximum spend for each set of creative assets. This ensures that the ad group receiving less spend can be allocated a specific budget, preventing one ad group from dominating the overall campaign spend. Putting all creative assets into one ad group would not provide granular spend control per creative. Updating targeting might influence spend distribution but doesn't guarantee specific allocation to each creative set. Separating into new campaigns would work but is a more complex solution than simply utilizing existing ad group budget functionality.