[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-08-25。"],[],[],null,["# Effect of dashboard edits on alerts\n\nIf you have the appropriate user [permissions](/looker/docs/alerts-for-admins), you can create alerts on [query-based tiles](/looker/docs/creating-user-defined-dashboards#query_tiles) or [Look-linked tiles](/looker/docs/creating-user-defined-dashboards#look-linked_tiles) on [user-defined dashboards](/looker/docs/viewing-dashboards) or on [LookML dashboards](/looker/docs/reference/lookml-dashboard-overview).\n\nEach alert query captures the dashboard and tile settings at the time an alert is created; however, an alert will sync with many of the common types of changes that you or other users make to its underlying dashboard or tile without the need to recreate the alert. This documentation page discusses how these types of dashboard changes affect alerts:\n\n- [Editing a dashboard or tile](#editing_a_dashboard_or_tile)\n- [Copying a dashboard](#copying_a_dashboard)\n- [Deleting a dashboard](#deleting_a_dashboard)\n- [Checking an alert's synchronization](#checking_an_alerts_synchronization_status)\n- [Resolving an unsynced alert](#resolving_an_unsynced_alert)\n\nFor information about editing an alert query, see the [Modifying alerts](/looker/docs/modifying-alerts) documentation page.\n\nEditing a dashboard or tile\n---------------------------\n\nMany of the changes that you or other users make to an alert's tile or dashboard synchronize to the alert settings without the need to recreate the alert. The alert captures some changes to its [dashboard tile](#editing_a_dashboard_tile) or its tile's [dashboard filter](#editing_dashboard_filters). The alert may also treat changes differently depending on its tile's [dashboard type](#editing_a_user-defined_dashboard_or_lookml_dashboard).\n\n### Editing a dashboard tile\n\nIf the tile has at least one alert on it, Looker displays a warning when you hover over the **Edit** option from the dashboard tile's [three-dot menu](/looker/docs/editing-user-defined-dashboards#editing_tiles):\n\n`Editing may affect any alerts on this tile.`\n\nLooker also displays a warning inside the **Edit Tile** window:\n\n`At least one alert is set on this dashboard tile. Editing the fields in this tile's visualization may invalidate the conditions for these alerts.`\n\nMany of the changes that are made to a dashboard tile will be adopted by the alert on that tile. Some changes, however, may invalidate the intended meaning of the alert query and break the synchronization between the alert and the dashboard tile. See the tables on this page for lists of common dashboard tile changes and how those changes affect any alerts on that tile.\n\n#### Editing a user-defined or LookML dashboard\n\nThis table shows whether alerts remain synchronized for each change a user may make to the tile queries on user-defined dashboards (UDD) or LookML dashboards.\n\n#### Editing LookML dashboards\n\nThis table describes how changes made exclusively to LookML dashboards affect any alerts on those tiles.\n\n### Editing dashboard filters\n\nFor [user-defined dashboards](/looker/docs/dashboards), you can choose whether to sync changes that are made to dashboard filters with all alerts on the dashboard or to sync no dashboard filters changes. You cannot selectively apply changes that are made to dashboard filters to alerts on individual dashboard tiles.\n\nTo sync dashboard filter changes with all alerts on the dashboard:\n\n1. Click the dashboard's [three-dot menu](/looker/docs/viewing-dashboards#three-dot_dashboard_menu).\n2. Select **Edit dashboard** to enter [edit mode](/looker/docs/editing-user-defined-dashboards#entering_edit_mode_in_dashboards_(beta)).\n3. Click **Filters** in the top toolbar.\n4. Enable the **Apply filter edits to alerts** toggle.\n\n\u003e Looker won't attempt to synchronize alerts with changes that are made to LookML dashboard filters.\n\nThis table describes how changes that are made exclusively to [user-defined dashboards](/looker/docs/dashboards) affect any alerts on those tiles.\n\nCopying a dashboard\n-------------------\n\nMaking a copy of a dashboard does not copy any enhanced alerts on that dashboard.\n\nDeleting a dashboard\n--------------------\n\nDeleting a dashboard immediately disables any alerts on that dashboard. Any followers or recipients will no longer receive notifications when the alert conditions are met.\n\nThe alert owner will see immediately that the name of the dashboard has been deleted for the alert on the [**Manage Alerts** user page](/looker/docs/user-alerts). After the next time the alert query runs, the alert status will show as **Disabled**.\n\nChecking an alert's synchronization status\n------------------------------------------\n\nYou can view the synchronization status of your alert on the **Alert Details** page, available from the [**Manage Alerts** user page](/looker/docs/user-alerts#alert_details_page). If you're a Looker admin, the **Alert Details** page is also available from the [**Alerts** management page](/looker/docs/admin-panel-alerts-and-schedules-alerts#alert_details_page).\n\nThe synchronization status is displayed on the bottom left of the page:\n\n- A green encircled check mark indicates that the alert is still synced to its dashboard.\n- A yellow triangular warning symbol indicates that the alert has become unsynced from its dashboard. The status includes a timestamp of when the synchronization was broken. An unsynced alert displays a **None** value in the **Dashboard** column of the [**Manage Alerts** user page](/looker/docs/user-alerts) or the [**Alerts** admin management page](/looker/docs/admin-panel-alerts-and-schedules-alerts).\n\nResolving an unsynced alert\n---------------------------\n\nEven if an alert becomes unsynced from its dashboard, Looker will continue to run alert queries to check the dashboard tile data for the alert conditions. Results of these queries will be displayed in the alert's history, viewable on the **Alert Details** page on the alert management pages for [alert owners](/looker/docs/user-alerts#alert_details_page) and [admins](/looker/docs/admin-panel-alerts-and-schedules-alerts#alert_details_page) and on the [**Alerts History**](/looker/docs/admin-panel-alerts-and-schedules-alert-history) admin page. However, depending on the reason for the synchronization breakage, it might not be possible for alert conditions to be met.\n\nIf an alert that you own has become unsynced from its dashboard, you may need to resolve the behavior by:\n\n- Editing the original alert conditions\n- Editing the original alert threshold values\n- Recreating the tile's original query and any desired filters\n\nTo edit an alert, see the [Modifying alerts](/looker/docs/modifying-alerts) documentation page.\n\nTo recreate the tile query:\n\n1. Click the **Explore from here** option from the visualization three-dot menu on the **Alert Details** page.\n2. Recreate the original query.\n3. Click the Explore gear icon and select **Save** on the gear menu and then **To existing dashboard** on the submenu to [add the query](/looker/docs/creating-user-defined-dashboards#adding_query_tiles_from_an_explore) to the appropriate dashboard.\n4. On the dashboard, [apply dashboard filters](/looker/docs/filters-user-defined-dashboards#adding_dashboard_filters) to the tile as needed.\n5. [Set a new alert](/looker/docs/creating-alerts) on that dashboard tile."]]