Currently the only way to get one value into host A from host B is with a calculated item type in B that says last(/HOST-A/status). This is not dynamic enough when it gets to host prototype discovery since you wont know what the name will be of host A beforehand. A work around would be to allow user macros in Formulas that say last(/{$HOST}/status) or to allow nested calculations last(/last(//conf.hypervisor)/status). This is how ever not supported it seems, is there any way to achieve this today in Zabbix 6.2.3 ?
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In my opinion, You can utilize custom scripts or external tools to achieve this. For instance, a custom script can fetch the required value from Host A and make it accessible in Host B's calculated item. Alternatively, consider using Zabbix API to dynamically update item names based on discovery results.
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