How can send the Battery status to KNX

Hallo,
How can i send the battery status to KNX?
I was creating a event but i strugling to get the value sent to KNX.

i get this massage
extra keys not allowed @ data[‘platform’]. Got None

This ist the value what i want to send
entity_id:
sensor.ix3_m_sport_verbleibende_batterie_in_prozent

Hi!

Remove platform: - thats not valid.

Use a template at payload:. See Send values via KNX using templates is not working - #4 by farmio

Or use knx expose. See https://www.home-assistant.io/integrations/knx/#exposing-entity-states-entity-attributes-or-time-to-knx-bus

Thanks
I will try it

It’s working.
Thanks a lot!