ATM strategy not applying to your entries in NinjaTrader 8

What is causing it

The ATM strategy was not selected at the moment the entry order was submitted, or the template it relies on is not the one you think.

Why this happens

An ATM strategy is a template that describes what orders to place around an entry. NinjaTrader applies it as the entry goes out, so the association is made at that instant. If no strategy was selected, the entry is just an entry.

Because the selection lives on the order entry window rather than the account or the chart, it is genuinely easy to submit from a window that has no strategy selected while another window does.

The fix, step by step

1. Select the ATM strategy in the order entry window before you send the entry, because it is applied at submission and cannot be attached to a position afterwards in the same way.
2. Check the ATM selection on each order entry window separately, as it is set per window and resets more often than people expect.
3. Open the ATM template and confirm the stop and target distances are the values you intend, in the units that instrument uses.
4. Confirm the quantity in the ATM template matches the quantity you are entering, since a mismatch can leave part of the position unprotected.
5. Test the whole flow on a simulation account first and watch the orders appear before relying on it live.
6. If your account is with a prop firm or has broker-side restrictions, confirm with them that the resulting bracket order types are permitted.

How to confirm it is fixed

Immediately after an entry fills, the stop and target orders are visible as working orders on the chart and in the orders list, at the distances the template specifies.

Stopping it happening again

Make checking the ATM selection part of your pre-trade routine, and never assume protection is in place without seeing the working orders.