Lockoing/unlocking Lock pro via API is not working

Lock Pro API 400 Error for no apparent reason

Hi there!

So I'm trying to control my SwitchBot Lock Pro via API (through the hub, of course).

I can correctly connect to the hub, and query the Lock Pro via API (get status of the LockPro), but as I try to Lock/Unlock it I keep getting an error.

• Authorization seems fine (I get "unathorized" error if the token expires or I remove the header, but works as soon as I add it properly),
• the payload seems fine ( {"command": "lock"} - if I change the value to a random string, I get "not this command" error, which I do not get with the correct command, "lock")

But when I try and run it, I get the following error: "One or more parameter values are not valid. The AttributeValue for a key attribute cannot contain an empty string value. Key: sn" - but I have no clue what "sn" is nor where it should be (I tried added it in the payload and the header, with no success).

Attached is a screenshot of my (python) code, and the result when trying to run it:

Anyone can help?

Thank you!!

Logs

b'{"statusCode":400,"body":{},"message":"One or more parameter values are not valid. The AttributeValue for a key attribute cannot contain an empty string value. Key: sn"}'

Configuration

noting useful

Environment

• OS: Win 11

Additional Context

No response