KC868-COLB Analog Sensor Data in Home Assistant

[admin]

Code:

   - name: 'COLB-A1'
     unique_id: COLB-A1
     state_topic: 'COLB/xxxxxxxxxxxxxxxxxxxxxxxxxxx/state'
     unit_of_measurement: '%'
     value_template: '{{ value_json.A1.value }} '

Please note: You did not use quotation marks. you showed as this.