When testing detections and metrics on a node, user macros in the key are not expanded to a value.
In detection (zabbix agent) returns an error. In metrics (external check) no error occurs, but the script is passed a macro, not its value.

There are no errors in the Zabbix-Server, Nginx, PostgreSQL, Zabbix-Agent2 logs.

Metrics and detections are triggered and receive data. The problem is only observed in the Web interface when testing a metric or detection where the key contains a custom macro.

Debian 12,

Zabbix 7.0.15,

Zabbix Agent2 7.0.15

PostgreSQL 17.