How to remove information about old firing alerts in notification?

Hi, when 1 alert is firing, AlertManager sends notification, then 2nd alert is firing or resolved, AM sends notification with information about 2 alerts, how to remove information about 1st alert in notification? I set ‘repeat_interval: 4h’ for AM config, but it doesnt help. I use Amazon Prometheus.

It sounds like you want to look at the grouping (group_by) configuration for Alertmanager:

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group_by helped, it works, thx