MQTT device name is equal to entity name in your config for switch as light device.

[jeroen85]

What happened?

I still experience the MQTT device vs entity name warning with the latest HA (2023.9.0) and Z2M (1.33.0) versions. It only occurs with one device. A smart plug I have set up as light in Z2M.

HA Warning in logs.

2023-09-07 14:48:34.763 WARNING (MainThread) [homeassistant.components.mqtt.mixins] MQTT device name is equal to entity name in your config {'availability': [{'topic': 'zigbee2mqtt/bridge/state', 'value_template': Template<template=({{ value_json.state }}) renders=0>, 'payload_available': 'online', 'payload_not_available': 'offline'}, {'topic': 'zigbee2mqtt/Kastlicht/availability', 'value_template': Template<template=({{ value_json.state }}) renders=0>, 'payload_available': 'online', 'payload_not_available': 'offline'}], 'availability_mode': 'all', 'command_topic': 'zigbee2mqtt/Kastlicht/set', 'device': {'identifiers': ['zigbee2mqtt_0x540f57fffe91ffb6'], 'manufacturer': 'TuYa', 'model': 'Smart plug (with power monitoring by polling) (TS011F_plug_3)', 'name': 'Kastlicht', 'connections': []}, 'name': 'Kastlicht', 'object_id': 'kastlicht', 'origin': {'name': 'Zigbee2MQTT', 'sw_version': '1.33.0', 'support_url': 'https://www.zigbee2mqtt.io'}, 'payload_off': 'OFF', 'payload_on': 'ON', 'state_topic': 'zigbee2mqtt/Kastlicht', 'state_value_template': Template<template=({{ value_json.state }}) renders=0>, 'unique_id': '0x540f57fffe91ffb6_light_zigbee2mqtt', 'schema': 'basic', 'payload_available': 'online', 'optimistic': False, 'on_command_type': 'last', 'white_scale': 255, 'payload_not_available': 'offline', 'enabled_by_default': True, 'brightness_scale': 255, 'encoding': 'utf-8', 'qos': 0, 'retain': False}, this is not expected. Please correct your configuration. The entity name will be set to `null`

Config in Z2M for specific device
Conform docs

  '0x540f57fffe91ffb6':
    friendly_name: Kastlicht
    measurement_poll_interval: 30
    homeassistant:
      switch:
        type: light
        object_id: light
      light:
        name: Kastlicht
        value_template: null
        state_value_template: '{{ value_json.state }}'

MQTT info within HA

Kastlicht (light.kastlicht)
MQTT discovery data:
Topic: homeassistant/light/0x540f57fffe91ffb6/light/config
Payload
availability:
  - topic: zigbee2mqtt/bridge/state
    value_template: '{{ value_json.state }}'
  - topic: zigbee2mqtt/Kastlicht/availability
    value_template: '{{ value_json.state }}'
availability_mode: all
command_topic: zigbee2mqtt/Kastlicht/set
device:
  identifiers:
    - zigbee2mqtt_0x540f57fffe91ffb6
  manufacturer: TuYa
  model: Smart plug (with power monitoring by polling) (TS011F_plug_3)
  name: Kastlicht
name: Kastlicht
object_id: kastlicht
origin:
  name: Zigbee2MQTT
  sw_version: 1.33.0
  support_url: https://www.zigbee2mqtt.io
payload_off: 'OFF'
payload_on: 'ON'
state_topic: zigbee2mqtt/Kastlicht
state_value_template: '{{ value_json.state }}'
unique_id: 0x540f57fffe91ffb6_light_zigbee2mqtt
platform: mqtt

What did you expect to happen?

No warning after this fix f619610

How to reproduce it (minimal and precise)

No response

Zigbee2MQTT version

1.33.0

Adapter firmware version

Not relevant

Adapter

Not relevant

Debug log

No response

[jeroen85]

Relates to #18445

[Drafteed]

Replace light name to null:

  '0x540f57fffe91ffb6':
    friendly_name: Kastlicht
    measurement_poll_interval: 30
    homeassistant:
      switch:
        type: light
        object_id: light
      light:
        name: null
        value_template: null
        state_value_template: '{{ value_json.state }}'

[jeroen85]

Thanks, that fixed it!