Adding custom entities to devices without one

I have a door sensor from Tuya that is showing up in HA as a device without entities. The Tuya app recognizes the device and its state, but somehow HA doesn’t find that information. Is there any way to correct this?

I’ve had HA since a couple of weeks and this is my first post, so I’m sorry if this has been asked before.

Hi Ed, Are you using the Tuya-integration or local-Tuya in HA?
To which Zigbee-coordinator is the sensor paired?

I’m working with the Tuya integration via the Tuya IOT platform. The sensor is paired to a Zigbee/SmartLife hub. Is that my Zigbee-coordinator?