post https://api.kevel.co/v1/creative
This creates a new creative under an advertiser.
IsSyncis deprecated, andIsIdOnlyis a read-only internal setting that defaults totrue.
In order to have the creative eligible to serve, you'll need to use the Creative Flight Maps (Ads) endpoints, which map the creative to a flight's ad.
If you need to upload the Creative to be hosted on Kevel's site, you'll need to use the Upload Creative Image endpoint after this step.