The error may have occurred because the creatives were configured to run on iOS instead of Android.
- They assigned the creative to run across multiple mobile carriers.
- They set an HTML5 creative to run on desktop.
- They set the creatives to run on all mobile platforms.
- They set the creatives to run on iOS.
The correct answer is: They set the creatives to run on iOS
Explanation: Campaign Manager 360 allows advertisers to target specific platforms, such as Android or iOS. If an advertiser intends to display ads within Android apps but mistakenly sets the creatives to target iOS, the ads will not serve correctly, leading to errors. Ensuring that the platform targeting aligns with the intended audience is crucial for proper ad delivery. support.google.com