Optionaladcp_The AdCP major version the buyer's payloads conform to. Sellers validate against their supported major_versions and return VERSION_UNSUPPORTED if unsupported. When omitted, the seller assumes its highest supported version.
Rights grant this creative was produced under
Optionalcreative_Buyer-assigned creative identifier. Equivalent to OpenRTB crid. Used to track approval status across resubmissions.
URL where the creative asset can be retrieved for review
Optionalcreative_OptionaldescriptionDescription of the creative for reviewer context
OptionalmetadataAdditional creative metadata (duration, dimensions, target audience, etc.)
Client-generated key for safe retries. Resubmitting with the same key returns the original response. MUST be unique per (seller, request) pair to prevent cross-seller correlation. Use a fresh UUID v4 for each request.
OptionalcontextOptionalext
Payload submitted by the buyer to the approval_webhook URL from acquire_rights. Contains the creative for rights holder review before distribution.