Validate an order without placing it.

Available to: All authenticated users

Environments: Demo, Live

Rate Limit: 500 requests per hour, 1-second back-off, counts all requests

Submit one or more orders (up to four) for validation against the account's pre-trade risk settings without actually placing them. The response includes a rejectReason if the batch would be rejected, so you can surface issues to the trader before they submit a real order.

Use this to check whether an order would pass margin requirements, position limits, and other risk checks before committing to a live trade.

The optional extraPreTradeRisk field lets you apply additional risk constraints beyond the account's default settings during validation.

Common Failure Scenarios

• The account does not exist (returns HTTP 404)
• The caller doesn't have access to the account (returns HTTP 401)
• The request contains more than four orders
• Invalid contractId in one or more orders