As part of creating a new campaign, you will need to create your app creative.
To do so, you can can click on the green "Next" button (bottom right when setting up new campaigns) or the "Edit Creative" blue button (Top right, when you edit existing campaign).
You will then need to upload 2 images and a video by the following guidelines:
Please upload image size 512x512 in JPEG or PNG image formats. You can also upload a different image size and adjust it. Please note that uploading an Icon Creative image is mandatory.
Please upload image size 1200x628 in JPEG or PNG image formats. You can also upload different image size and adjust it. Please note that uploading a Landscape creative image is mandatory.
You can upload videos of minimum 15 seconds and maximum 60 seconds' length. Please upload MP4 video file (up to 100MB).