Acknowledge an alarm
To acknowledge and alarm, perform the following actions:
-
Press the views panel.
button in the -
Select "Active alarms" in the dropdown at the top left corner of the window.
-
Press the right mouse button on the alarm, that should be acknowledged.
-
Select the "Acknowledged" item.

Acknowledge alarm
The acknowledged alarm will be marked with a striped background, the "Acknowledged" field will contain the timestamp and the user who acknowledged the alarm:

Acknowledged alarm
REST API
You can acknowledge an alarm via REST API with the Acknowledge incident request.
You need an alarm ID for this request.
Request example via curl
login=<...>
password=<...>
saymon_hostname=<...>
incident_id=<...>
url=https://$saymon_hostname/node/api/incidents/$incident_id/acknowledge
curl -X POST $url -u $login:$password