ManualValidation@0 - Manual validation v0 task

Use this task to pause a YAML pipeline run to wait for manual interaction.


# Manual validation v0
# [PREVIEW] Pause a pipeline run to wait for manual interaction. Works only with YAML pipelines.
- task: ManualValidation@0
    notifyUsers: # string. Required. Notify users. 
    #instructions: # string. Instructions. 
    #onTimeout: 'reject' # 'reject' | 'resume'. On timeout. Default: reject.


notifyUsers - Notify users
string. Required.

Sends a manual validation pending email to specific users (or groups). Only users with queue build permission can act on a manual validation. You can send an email to a group using the [org name]\group name syntax.

instructions - Instructions

Specifies the instructions that are shown to the user when resuming or rejecting the manual intervention. Based on these instructions, the user will make an informed decision about this manual intervention.

onTimeout - On timeout
string. Allowed values: reject, resume. Default value: reject.

Automatically rejects or resumes this manual validation after it is pending for the specified timeout, or 30 days, whichever is earlier.

Task control options

All tasks have control options in addition to their task inputs. For more information, see Control options and common task properties.

Output variables



Use this task in a YAML pipeline to pause a run within a stage. This is typically executed to perform various manual steps or actions and then the run is resumed or rejected.


This task is only supported in YAML pipelines and can only be used in an agentless job of a YAML pipeline.

The Manual Validation task allows you to pause a pipeline run within a stage, typically to perform some manual steps or actions, and then continue with the pipeline. For example, the user may need to manually validate certain deployment configurations before the pipeline starts a long running computational intensive job.

The Manual Validation task configuration includes an instructions parameter that is used to provide related information or to specify the manual steps the user executes during the pause. You can configure the task to send email notifications to users and user groups when it is awaiting a review and specify the automatic response (reject or resume) after a configurable timeout occurs.

You can specify the timeout value for the task using the optional timeoutInMinutes parameter, available in the control options.


For the task to run completely, the timeout value of the job should be higher than the timeout value of the task. See default job timeout values.


You can use variables to specify email addresses in the notifyUsers parameter.

When the Manual Validation task is activated during a pipeline, it displays a message bar with a link that opens the Manual validation dialog, which contains the instructions. After carrying out the manual steps, the administrator or user can choose to resume the run or reject it. Users with Queue builds permission on the pipeline can resume or reject the run.


  - job: waitForValidation
    displayName: Wait for external validation
    pool: server
    timeoutInMinutes: 4320 # job times out in 3 days
    - task: ManualValidation@0
      timeoutInMinutes: 1440 # task times out in 1 day
        notifyUsers: |

        instructions: 'Please validate the build configuration and resume'
        onTimeout: 'resume'


Requirement Description
Pipeline types YAML, Classic build
Runs on Server
Demands None
Capabilities This task does not satisfy any demands for subsequent tasks in the job.
Command restrictions Any
Settable variables Any
Agent version All supported agent versions.
Task category Deploy