Funds Required Errors

Current user-facing messages for NubraTrader.get_margin() and POST /sentinel/orders/funds_required.

Error message	Meaning	Recommended action
Use a Limit Order for Day validity.	A market order is unsupported with DAY validity for this request.	Use a LIMIT order.
Use a Limit Order for GTT validity.	A market order is unsupported with GTT/GTE validity.	Use a LIMIT order.
Use a Limit Order for BE/BZ Series.	A market order is unsupported for BE/BZ series.	Use a LIMIT order or delivery-compatible request.
Enter a valid quantity.	The margin request contains an invalid quantity.	Send a positive quantity matching the instrument contract.
Too many tries. Please try again.	The request was rate-limited or temporarily rejected.	Wait briefly and retry with backoff.
Pick an entry time ahead of now.	The requested entry time is in the past.	Send a future entry time.
Set entry time between 09:15 and 15:30.	The requested entry time is outside trading hours.	Use a valid market-session time.
Set exit time before 15:20.	The requested exit time is too close to market close.	Set an earlier exit time.
Intraday Orders not allowed for BE/BZ series. Select Delivery type.	Intraday margin calculation is unsupported for BE/BZ series.	Use delivery type.
Please try again. If it persists, write to support@nubra.io or call 08645322504.	A general backend failure occurred while calculating required funds.	Retry with backoff, then contact support if it persists.