Zigbee2mqtt last_seen

Configuration Zigbee
1

Does anyone have a definitive guide to how to enable the last_seen attribute of a device in Zigbee2mqtt?

I’ve read numerous posts that say “oh just add this, or just add that”

example:

or
1000002210

As far as I can tell, that would set the date and time format to local time for the last_seen attribute :man_shrugging:, but how does that then enable it and where specifically does this need to be added?

I enabled simple availability in my Zigbee2mqtt and now have all my devices showing their availability:

1000002204
10000022042353×923 164 KB

I look at the first device and the last_seen attribute shows N/A

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Then I discover this under Settings > Raw

1000002208
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How do I change that "last_seen": "disable", to "last_seen": "enable",

I can’t see that in the zigbee2mqtt configuration.yaml file

Thanks.

2

Try restarting Zigbee2MQTT. If it is still not enabled for all your devices, I’m afraid you will need to re-pair them.

1 Like
3

I had to do this for my last_seen entities to start appearing.

4

@francisp
I too have a device that has “Last seen: N/A”. I have the Z2M add-on in HA.
The device can be controlled from the Z2M add-on, but pressing the on/off button on the device itself doesn’t change the state in the Z2M dashboard, let alone in HA.

The device is an innr SP240 smart plug, I just installed firmware 1.9.27 with firmware build date 20250127:

Is this state reporting malfunction due to the “last seen: N/A” issue?

I have not tried re-pairing the device yet.

Thanks

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