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**To cancel a service instance deployment**

The following ``cancel-service-instance-deployment`` example cancels a service instance deployment. ::

    aws proton cancel-service-instance-deployment \
        --service-instance-name "instance-one" \
        --service-name "simple-svc"

Output::

    {
        "serviceInstance": {
            "arn": "arn:aws:proton:region-id:123456789012:service/simple-svc/service-instance/instance-one",
            "createdAt": "2021-04-02T21:29:59.962000+00:00",
            "deploymentStatus": "CANCELLING",
            "environmentName": "simple-env",
            "lastDeploymentAttemptedAt": "2021-04-02T21:45:15.406000+00:00",
            "lastDeploymentSucceededAt": "2021-04-02T21:38:00.823000+00:00",
            "name": "instance-one",
            "serviceName": "simple-svc",
            "spec": "proton: ServiceSpec\npipeline:\n  my_sample_pipeline_optional_input: abc\n  my_sample_pipeline_required_input: '123'\ninstances:\n- name: my-instance\n  environment: MySimpleEnv\n  spec:\n    my_sample_service_instance_optional_input: def\n    my_sample_service_instance_required_input: '456'\n- name: my-other-instance\n  environment: MySimpleEnv\n  spec:\n    my_sample_service_instance_required_input: '789'\n",
            "templateMajorVersion": "1",
            "templateMinorVersion": "1",
            "templateName": "svc-simple"
        }
    }

For more information, see `Update a service instance <https://docs.aws.amazon.com/proton/latest/adminguide/ag-svc-instance-update.html>`__ in the *The AWS Proton Administrator Guide* or `Update a service instance <https://docs.aws.amazon.com/proton/latest/userguide/ug-svc-instance-update.html>`__ in the *The AWS Proton User Guide*.