Cannot post to group item - Error 400?

[rlkoshak (Rich Koshak)]

@Christoph_B

a) send to the groups elements via group without triggering the action (command) in the rule?

You can use postUpdate to avoid triggering the bindings linked to the Items. However, if these are coming from the sitmap/habpanel you will probably need to use a Proxy Item to receive the command and then figure out how/when to pass the command on to the members of the group. (your dummy Item idea).

Design Pattern: Proxy Item

Edit: Updates for OH 4 Please see https://community.openhab.org/t/design-pattern-what-is-a-design-pattern-and-how-do-i-use-them/40319 for information on what a DP is and how to use them. Problem Statement Often one faces one or more of the following situations: perform additional logic before sending a command to a device (e.g. make sure the device can safely receive the command) send a command to multiple devices based on a single event and Groups, the follow profile, or linking multiple C…