Optional account ID. If omitted, the account is inferred from the connection: the user's default account, or the session account for an account-scoped session.

Order price in USD as decimal string; e.g. "1.2345"

Whether the order is post-only (maker-or-cancel)

Order quantity in contracts; e.g. 100, 1000

Order symbol; e.g. XAU-PERP, EURUSD-PERP

Controls how the matching engine handles an order that would trade against the submitter's own resting orders. Defaults to CancelIncoming.

Optional order tag; maximum 10 alphanumeric characters

Order time in force; e.g. "GTC", "IOC". "DAY" is accepted but deprecated and will be removed in a future release — use "GTC" instead.

Initial margin requirement for the order; e.g. "1000.00"

Initial margin percentage for the order symbol

Multiplier for the order symbol

Current signed position in the order symbol