One mistake in display campaigns is running ads without proper targeting. Sending ads to a wide and random audience often wastes money and brings low results. Another issue is using poor creatives. If the banner or image looks unclear or unattractive, people will scroll past it. Some affiliates also forget to split test different versions of ads. Without testing, it's hard to know which design or message performs better. Landing pages that don’t match the ad or load slowly can also reduce conversions. It’s also easy to ignore tracking, which makes it hard to know what’s working. Keeping an eye on all these things can help improve campaign results. What other mistakes have people noticed in display ads?