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.
OptionalperiodOptionalcontextOptionalext
Request financial status for an operator-billed account. Returns spend summary, credit/balance status, and invoice history. Only applicable when the seller declares account_financials capability.