[Bug]: Unable to execute ReplaceOrderRequest on a stop loss order

[k-]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

Stop orders seemingly can't have their stop price updated. Trying to issue a ReplaceOrderRequest with a new stop limit will throw an error

Expected Behavior

The stop order should be updated to use the new price as specified in the request.

SDK Version I encountered this issue in

Package Version

---

alpaca-py 0.13.3

Steps To Reproduce

Repro:

1. Create a stop order (I used a sell side stop order for an equity I owned, in paper)
2. Copy the ID of that order, put it in order_id_copied_from_web_interface
3. In python, set up a trading client and issue a ReplaceOrderRequest like so:

order = trading_client.replace_order_by_id(order_id=order_id_copied_from_web_interface,
    order_data=ReplaceOrderRequest(
        stop_loss=53.2 # of course use some value that makes sense in your case
    ))

When you execute that request, you'll get the following error:

alpaca.common.exceptions.APIError: {"code":42210000,"message":"order parameters are not changed"}

Filled out the Steps to Reproduce section?

• [X] I have entered valid steps to reproduce my issue or have attached a minimally reproducible case in code that shows my issue happening; and understand that without this my issue will be flagged as invalid and closed after 30 days.

Anything else?

No response

[k-]

The problem is that I was using stop_loss (carried over from a bracket order) instead of stop_price.