Google Display (Responsive Display Ads) only. Google RDA requires both a landscape (1.91:1) and a square (1:1) marketing image; sending only one is rejected upstream as 'Too few.' (NOT_ENOUGH_*_MARKETING_IMAGE_ASSET). Supply both URLs here. Either this field or the legacy imageUrl can provide the landscape, but square has no legacy counterpart so it must be set here for Display.
| Name | Type | Description | Notes |
|---|---|---|---|
| landscape | URI | Landscape 1.91:1 marketing image URL (e.g. 1200x628). Also accepted via the top-level `imageUrl` for backward compatibility. | [optional] |
| square | URI | Square 1:1 marketing image URL (e.g. 1080x1080). Required for Google Display. | [optional] |