Why is it important that you set goals when planning your display ad campaigns?

Setting clear goals for display ad campaigns is crucial because it provides a benchmark against which performance can be measured. Without goals, it's impossible to objectively assess whether the campaign is successful or identify areas needing improvement. For example, if a goal is to increase website traffic by 20%, you can track metrics like clicks and sessions to see if you're on target. This data-driven approach enables optimization; if traffic is low, you might adjust ad creatives, targeting, or bidding strategies. The other options are less accurate. While budget allocation is part of campaign planning, goals primarily guide performance measurement, not just where money is spent. Collating customer data is a separate, though related, activity that benefits from clear campaign objectives but isn't the primary reason for setting them.