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# 11 Execute now

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#### Overview

The *Execute now* option allows executing passive checks immediately.

Item value collection in Zabbix follows configured update intervals.
Some items (e.g., low-level discovery rules) have long intervals, and you may need to fetch a new value immediately—for example, to detect changes in discoverable resources.

The *Execute now* option is supported for the following item types:

-   Zabbix agent (passive)
-   Simple check
-   SNMP agent (v1/v2/v3)
-   Zabbix internal
-   External check
-   Database monitor
-   HTTP agent
-   IPMI agent
-   SSH agent
-   TELNET agent
-   JMX agent
-   Calculated
-   Dependent item
-   Script
-   Browser

If the item is of type "Dependent item", then its master item must also be one of the above types.

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#### Configuration

You can execute passive checks from:

-   *Monitoring* > [*Latest data*](/manual/web_interface/frontend_sections/monitoring/latest_data)
-   *Data collection* > *Hosts* > [*Items*](/manual/web_interface/frontend_sections/data_collection/hosts/items) or [*Discovery*](/manual/web_interface/frontend_sections/data_collection/hosts/discovery)
-   The [item menu](/manual/web_interface/menu/item_menu)
-   When editing items or low-level discovery rules (in their configuration forms)

::: noteimportant
The check must exist in the configuration cache in order to get executed; see also [CacheUpdateFrequency](/manual/appendix/config/zabbix_server#cacheupdatefrequency).
The cache is **not updated** before check execution, so recent changes to item or low-level discovery rule configuration will not be picked up.
To test items or LLD rules that are being created or newly created, you can use the [Test](/manual/config/items/item#testing) option instead.
:::

For example, to execute a passive check in *Monitoring* > [*Latest data*](/manual/web_interface/frontend_sections/monitoring/latest_data):

1. Select items; you can execute the check for multiple items at once.
2. Click *Execute now*.

![](../../../../assets/en/manual/config/items/execute_now_latest_data.png)

::: noteclassic
In *Latest data*, users may *Execute now* items on hosts for which they have *read-write* [permission](/manual/config/users_and_usergroups/usergroup#configuration), or *read* permission and *Invoke "Execute now" on read-only hosts* [action](/manual/web_interface/frontend_sections/users/user_roles#default-permissions) enabled for their role.
:::

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