Ad Creative Link Data Child Attachment

Call to action of this attachment. On Facebook, we support one optional CTA per attachment. If it not specified, there will be no CTA for this attachment.
On Instagram, there is one CTA per attachment. If the CTA is not specified, a CTA will be created by the system, using "Learn more" as the type, and the link from this child attachment as the link. If the CTA is specified, its link must be the same as the link of this child attachment.

The display url shown at the end of a video, if the attachment is a video

The automated generated caption/SRT caption ids of the video.

Overwrites the description of each attachment on Facebook, not used on Instagram.

Image crops, using the crop spec with 100x100 key for Carousel ads. If no 100x100 crop spec is provided, the image would be cropped automatically, unless the image is square already. The final cropped image size needs to be at least 200x200 pixels for Facebook, or 600x600 for Instagram.

The image hash of an uploaded image for this attachment. For an ad on Facebook, if neither picture nor image_hash is set, the image of link_data above will be used. For an ad on Instagram, either picture or image_hash is required.

The link of this attachment.

Overwrites the title of the attachment on Facebook, not used on Instagram.

The url of an image for this attachment. For an ad on Facebook, if neither picture nor image_hash is set, the image specified in link_data above will be used. For an ad on Instagram, either picture or image_hash is required.

If you are running Referral Ads in the carousel format, provide this ID. You can generate this ID in Graph Explorer or via the Marketing API at the {ad_account_id}/referral endpoint. Facebook uses this ID to attribute conversions back to a referred ad and to render the correct deep-link to the individual item being referred.

Whether to force the card to render statically, even in a dynamic ad.

ID of an uploaded video, if this attachment is a video. Not supported for Instagram ads.