Your business partner is working with a client who’d like to advertise within several iOS news apps. An error occurs after setting up the campaign in Campaign Manager 360 and assigning the creatives.What could have caused the error?

The error occurred because the creatives were set for the Android operating system, but the client wants to advertise within iOS news apps. Campaign Manager 360 requires creatives to be compatible with the specific operating system they will run on. Android and iOS are distinct platforms, and creatives designed for one will not function correctly on the other. Setting an HTML5 creative to run on desktop is generally not an error, as HTML5 is widely supported across desktop browsers. Assigning the creative to work with several mobile carriers or setting them to work with all mobile platform types (which would include iOS) would not cause an error in this specific scenario, as these options imply broader compatibility rather than a mismatch with the target OS.