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# 4 Latest data

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#### Overview

In this section you can view the latest values 
gathered by items.

Graphs are also available for the item values.

![](../../../../../assets/en/manual/web_interface/latest_data.png){width="600"}

This section contains:

- the [filter](#using_filter) (collapsed by default)
- the [subfilter](#using_subfilter) (never collapsed) 
- the item list

Items are displayed with their name, time since the last check, **last value**, change
amount, tags, and a link to a simple graph/history of item values. 

Clicking on the item name opens the item menu with links to available graphs and the 
item configuration.

Values in the *Last value* column are displayed with unit conversion and 
value mapping applied. To view raw data, hover over the value.

Tags in the item list are clickable. If you click on a tag, this tag becomes enabled 
in the [subfilter](#using-subfilter). The item list now displays the items corresponding to this tag and 
any other previously selected tags in the subfilter. Note that once the items have 
been filtered in this way, tags in the list are no longer clickable. Further modification 
based on tags (e.g. remove, add another filter) must be done in the subfilter.

If an item has errors, for example, has become unsupported, an information icon will 
be displayed in the *Info* column ![](../../../../../assets/en/manual/web_interface/info_icon.png). 
Hover over the icon for details.

An icon with a question mark
![](../../../../../assets/en/manual/web_interface/item_description_icon.png)
is displayed next to the item name for all items that have a
description. Hover over this icon to see a tooltip with the item
description.

If a host to which the item belongs is in maintenance, an orange wrench icon ![](../../../../../assets/en/manual/web_interface/frontend_sections/configuration/maintenance_wrench_icon.png) is displayed after the host's name.

*Note*: The name of a disabled host is displayed in red. Data of disabled hosts, including graphs and item value lists, is also accessible in *Latest data*.

By default, only values that fall within the last 24 hours are
displayed. This limit has been introduced with the aim of improving
initial loading times for large pages of the latest data. 
This time period can be extended by changing the value of 
the *Max history display period* parameter in
*Administration → [General]*(/manual/web_interface/frontend_sections/administration/general#gui).

::: noteimportant
For items with an update frequency of 1 day or
more the change amount will never be displayed (with the default
setting). Also in this case the last value will not be displayed at all
if it was received more than 24 hours ago.
:::

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##### Buttons

View mode buttons being common for all sections are described on the
[Monitoring](/manual/web_interface/frontend_sections/monitoring#view_mode_buttons)
page.

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##### Mass actions

Buttons below the list offer mass actions with one or several selected items:

-   *Display stacked graph* - display a stacked [ad-hoc graph](/manual/config/visualization/graphs/adhoc)
-   *Display graph* - display a simple [ad-hoc graph](/manual/config/visualization/graphs/adhoc)
-   *Execute now* - execute a check for new item values immediately.
    Supported for **passive** checks only (see [more
    details](/manual/config/items/check_now)). This option is available only for hosts with read-write 
    access. Accessing this option for hosts with read-only permissions depends on the 
    [user role](/manual/web_interface/frontend_sections/users/user_roles) option called 
    *Invoke "Execute now" on read-only hosts*.

To use these options, mark the checkboxes before the respective items,
then click on the required button.

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#### Using filter

You can use the filter to display only the items you are interested in.
For better search performance, data is searched with macros unresolved.

The filter icon ![](../../../../../assets/en/manual/web_interface/icon_filter_collapsed.png){width="20"} is located above the table and the subfilter. Click on it 
to expand the filter.

![](../../../../../assets/en/manual/web_interface/frontend_sections/monitoring/latest_data_filter.png){width="600"}

The filter allows to narrow the list by host group, host, item name, tag and other settings. 
Specifying a parent host group in the filter implicitly selects all nested host
groups. See *Monitoring* -> *[Problems](/manual/web_interface/frontend_sections/monitoring/problems#using-filter)* 
for details on filtering by tags.

*Show details* allows to extend the information displayed for the items.
Such details as the refresh interval, history and trends settings, item
type, and item errors (fine/unsupported) are displayed.

##### Saving filter

Favorite filter settings can be saved as tabs and then quickly accessed by 
clicking on the respective tab above the filter.

See more details about [saving filters](/manual/web_interface/frontend_sections/monitoring/problems#tabs_for_favorite_filters).

#### Using subfilter

The subfilter is useful for a quick one-click access to groups of related items. 
The subfilter operates autonomously from the main filter - results are filtered 
immediately, no need to click on *Apply* in the main filter.

Note that the subfilter only allows to further modify the filtering from the main filter. 

Unlike the main filter, the subfilter is updated together with each table refresh request 
to always get up-to-date information of available filtering options and their counter 
numbers.

The subfilter shows **clickable links** allowing to filter items based on a common 
entity - the host, tag name or tag value. As soon as the entity is clicked, items are 
immediately filtered; the selected entity is highlighted with gray background. 
To remove the filtering, click on the entity again. To add another 
entity to the filtered results, click on another entity.

For each entity group (e.g. tags, hosts) up to 10 rows of entities are displayed. If there are 
more entities, this list can be expanded to a maximum of 1000 entries 
(the value of SUBFILTER_VALUES_PER_GROUP in [frontend definitions](/manual/web_interface/definitions)) 
by clicking on a three-dot icon displayed at the end. Once expanded to the maximum, the 
list cannot be collapsed. (*Note* that a non-expandable maximum of 100 is the limit before Zabbix 6.0.5.)

In the list of *Tag values* up to 10 rows of tag names are displayed. If there are 
more tag names with values, this list can be expanded to a maximum of 200 tag names 
by clicking on a three-dot icon displayed at the bottom. Once expanded to the maximum, the 
list cannot be collapsed. (*Note* that a non-expandable maximum of 20 rows is the limit before Zabbix 6.0.5.)

For each tag name up to 10 rows of values are displayed (expandable to 1000 entries 
(the value of SUBFILTER_VALUES_PER_GROUP in [frontend definitions](/manual/web_interface/definitions))).

The host options in the subfilter are available only if no hosts or more than one 
host is selected in the main filter. 

By default, items with and without data are displayed in the item list. If only one host 
is selected in the main filter, the subfilter offers the option to filter only items 
with data, only without data, or both for this host.

A number next to each clickable entity indicates the number of items it has in the 
results of the main filter. Entities without items are not displayed, unless they were 
selected in the subfilter before.

Once one entity is selected, the numbers with other available entities are displayed 
with a plus sign indicating how many items may be added to the current selection.

#### Graphs 

**Ad-hoc graphs for comparing items**

You may use the checkbox in the first column to select several items and
then compare their data in a simple or stacked [ad-hoc
graph](/manual/config/visualization/graphs/adhoc). To do that, select
items of interest, then click on the required graph button below the
table.

**Links to value history/simple graph**

The last column in the latest value list offers:

-   a **History** link (for all textual items) - leading to listings
    (*Values/500 latest values*) displaying the history of previous item
    values.

-   a **Graph** link (for all numeric items) - leading to a [simple
    graph](/manual/config/visualization/graphs/simple). However, once
    the graph is displayed, a dropdown on the upper right offers a
    possibility to switch to *Values/500 latest values* as well.

![](../../../../../assets/en/manual/web_interface/latest_values.png){width="600"}

The values displayed in this list are "raw", that is, no postprocessing
is applied.

::: noteclassic
The total amount of values displayed is defined by the value
of *Limit for search and filter results* parameter, set in
[Administration →
General](/manual/web_interface/frontend_sections/administration/general).
:::

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