---
title: Validate a snapshot manually
description: Validate a snapshot from the Snapshot tab. For example, manually validate a snapshot to ensure that its valid for new policy requirements.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/it-service-management/devops-family/cdm-snapshot-validate-manually.html
release: brazil
product: DevOps \(Family\)
classification: devops-family
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 2
breadcrumb: [Validating and correcting configuration data, Using DevOps Config, DevOps Config, IT Service Management]
---

# Validate a snapshot manually

Validate a snapshot from the **Snapshot** tab. For example, manually validate a snapshot to ensure that its valid for new policy requirements.

## Before you begin

**Important:** DevOps Config is now deprecated and no longer supported or available for new activation.

Role required: cdm\_editor or cdm\_admin

## About this task

-   Do not manually validate snapshots that have already been validated and published.
-   If you select the **Validate snapshots** or **Validate and publish snapshots** option when committing a changeset, then the system auto-validates each snapshot when it is first generated.
-   To view the current validation failures or warnings for a snapshot, open the snapshot and select the **Validation Results** tab. For details, see [View the results of snapshot validation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/it-service-management/devops-family/cdm-validation-results-view.md).
-   Use the Policy Test Playground feature to revalidate snapshots while you develop a policy. The resulting validation results are flagged as test results and do not affect operations.
-   If there is a requirement to revalidate all snapshots for a deployable, revalidate only after you have tested and published the policies.

## Procedure

1.  Use either of the following methods to validate a snapshot:

    -   Use the REST API endpoint to validate.
    -   On the **Snapshots** tab for an application, select the name of the snapshot to validate and then select **Validate**.
    -   On any tab for an open snapshot, select **Validate**.
2.  Confirm the action on the Validate snapshot dialog box.

    The system follows this procedure to validate snapshots:

    -   The system executes all policies that are statically or dynamicallymapped to the associated deployable.
    -   If the snapshot passes all policies, then the Validation status value is set to **Passed** and no entries are listed on the **Validation Results** tab. If validation was invoked with the **Publish Valid** publish option, then valid snapshots are auto-published.
    -   If any policy encounters issues, then the Validation status value is set to **Failed**. The **Validation Results** tab displays all failures or warnings returned by policies.
    -   If any policy failed to run to completion, then the Validation status value is set to **Execution error** and the **Validation Results** tab indicates that validation failed due to error.

## What to do next

If the snapshot failed validation, you can view the issues to fix them. See [View the results of snapshot validation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/it-service-management/devops-family/cdm-validation-results-view.md).

**Related topics**  


[View the results of snapshot validation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/it-service-management/devops-family/cdm-validation-results-view.md)