{
  "format_kind": "video_hosted",
  "format_option_id": "shortloop_reference_video",
  "canonical_formats_only": true,
  "params": {
    "asset_source": "publisher_owned_reference",
    "buyer_asset_acceptance": "rejected",
    "reference_mutability": "mutable_requires_reapproval",
    "required_connections": [
      {
        "provider": "social.example",
        "connection_type": "advertiser_account",
        "required_for": ["sync_creatives", "create_media_buy"],
        "scope": "account"
      },
      {
        "provider": "social.example",
        "connection_type": "publisher_identity",
        "required_for": ["list_creatives", "sync_creatives", "create_media_buy"],
        "scope": "identity",
        "authorization_instructions": "Connect the creator or page that owns the source post."
      }
    ],
    "orientation": "vertical",
    "slots": [
      {
        "asset_group_id": "published_post",
        "asset_type": "published_post",
        "required": true
      },
      {
        "asset_group_id": "primary_text",
        "asset_type": "text",
        "required": false,
        "max_chars": 150
      },
      {
        "asset_group_id": "landing_page_url",
        "asset_type": "url",
        "required": false
      }
    ]
  }
}

{
  "format_kind": "video_hosted",
  "format_option_ref": {
    "scope": "product",
    "format_option_id": "shortloop_reference_video"
  },
  "assets": {
    "published_post": {
      "asset_type": "published_post",
      "post_url": "https://social.example/@acme/post/12345"
    },
    "primary_text": {
      "asset_type": "text",
      "content": "New seasonal styles are available now."
    },
    "landing_page_url": {
      "asset_type": "url",
      "url_type": "clickthrough",
      "url": "https://acme.example/summer"
    }
  }
}

{
  "errors": [
    {
      "code": "AUTHORIZATION_REQUIRED",
      "message": "Connect the publisher identity that owns this post before paid serving.",
      "field": "creatives[0].assets.published_post",
      "details": {
        "missing_connections": [
          {
            "provider": "social.example",
            "connection_type": "publisher_identity",
            "required_for": ["sync_creatives"],
            "scope": "identity",
            "status": "missing",
            "resource_ref": {
              "post_url": "https://social.example/@acme/post/12345"
            },
            "authorization_url": "https://seller.example/connections/social/authorize?post=12345",
            "authorization_instructions": "Connect the creator or page that owns the source post."
          }
        ]
      }
    }
  ]
}