Support Board

Date/Time: Sun, 14 Jun 2026 19:24:06 +0000

[Programming Help] - Does DTC Support a Parent Entry with Only One Attached Protective Stop Child?

[2026-06-14 16:49:42] #1 [Go To First Post]
User178481 - Posts: 1
Hello, I am using Sierra Chart DTC order entry from an external Python client. I need clarification on the official supported DTC method for submitting an entry order with attached protective stop protection. The DTC documentation explains a bracket order as: * `SUBMIT_NEW_SINGLE_ORDER` with `IsParentOrder=1` * followed by `SUBMIT_NEW_OCO_ORDER` * using `ParentTriggerClientOrderID` * with two child orders in the OCO pair My question: Does Sierra Chart DTC support a parent entry order with only one attached child protective stop order, without a second target/OCO child? In other words, can I submit: 1. parent stop-limit entry order 2. one attached protective stop child only and have Sierra hold/process them as one protected attached-order set, so that the entry cannot become accepted/filled without the protective stop relationship being confirmed? If yes, could you please point me to the exact DTC message type, fields, and required acknowledgement/order-update behavior? If no, please confirm that DTC bracket submission requires a parent plus two OCO child orders. I need this for automated trading safety. I do not want to submit an entry first and then submit a protective stop later in a separate cycle. Thank you in advance!

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