Expression macro in email showing *unknown*

[Sakoor]

I would like to display some data such as uptime, CPU usage , etc in email alert when there is a problem . I am using expression macro {?last\host\key}, but all being shown as *unknown* in the mail alert. I am using version 6.2.3. Any idea on this. Thanks

[Markku]

See the documentation for the correct syntax: https://www.zabbix.com/documentation...ression_macros

Markku

[Sakoor]

Hi Markku,,
Thanks for your reply.
I forgot to mention that it was working well in 6.2.0.
I'm getting this issue when upgrading to 6.2.3. For example here is the expression I'm using for uptime:
{? last (/{HOST.HOST}/system.uptime)}
I tried also {?last (//system.uptime)} with no luck

[Markku]

If I remember correctly, there was some issue in the expression macros lately (but I don't have first-hand experience). See Zabbix release notes and support.zabbix.com for details if needed.

Note that you are not using the latest version.

Markku

[Sakoor]

I just upgraded to 6.2.5 but issue still persisting.

[Markku]

Remove the extra spaces in your expressions, try 6.2.6 and then open a support case if you can detail your information there.

Markku

[Sakoor]

In my expression, I verify there is no space. I also upgraded to 6.2.6 but issue still not resolved.
Could you perhaps share the link where I can raise a support case. Thanks.

[Markku]

https://support.zabbix.com