After manually closing an alert it comes back on

[lpossamai]

Hi.

If I have an alert triggered, like the one in the attachment, and I close it, after a few seconds that the alert is manually closed it comes back again.

If I manually close the alert, even though it hasn't been resolved, I'd like it to NOT be displayed anymore. Is there a way to do that in Zabbix?

Cheers!

[Semiadmin]

Hi, lpossamai.
I think you need more complex trigger. For example:
Expression: pfree.last()<20 and pfree.prev()>=20
Recovery expression: pfree.last()>=20