Run one or more saved transformations, in the order given, on an existing standardization or on a structured document (CSV, Excel, JSON or XML). Pass exactly one of standardizationId or documentId. Each transformation receives the previous one's output. The result is returned and stored on the standardization or document; the original data is never changed. To run transformations as part of a new extraction, pass transformationIds to POST /v3/standardize instead. Costs 1 credit per call, however many transformations are chained. Returns 402 before running when credits are insufficient and overage billing is unavailable. The balance is checked again at apply time. Returns 503 without running if the account's credit balance cannot be checked.