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Troubleshoot pipeline triggers

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TFS 2018

If a pipeline doesn't start at all, check the following common trigger related issues.

UI settings override YAML trigger setting

YAML pipelines can have their trigger and pr trigger settings overridden in the pipeline settings UI. If your trigger or pr triggers don't seem to be firing, check that setting. While editing your pipeline, choose ... and then Triggers.

Pipeline settings UI

Check the Override the YAML trigger from here setting for the types of trigger (Continuous integration or Pull request validation) available for your repo.

Override YAML trigger from here.

Pull request triggers not supported with Azure Repos

If your pr trigger isn't firing, and you are using Azure Repos, it is because pr triggers aren't supported for Azure Repos. In Azure Repos Git, branch policies are used to implement pull request build validation. For more information, see Branch policy for pull request validation.

Branch filters misconfigured in CI and PR triggers

Scheduled trigger time zone conversions

YAML scheduled triggers are set using UTC time zone. If your scheduled triggers don't seem to be firing at the right time, confirm the conversions between UTC and your local time zone, taking into account the day setting as well. For more information, see Scheduled triggers.

UI settings override YAML scheduled triggers

If your YAML pipeline has both YAML scheduled triggers and UI defined scheduled triggers, only the UI defined scheduled triggers are run. To run the YAML defined scheduled triggers in your YAML pipeline, you must remove the scheduled triggers defined in the pipeline settings UI.

To access the pipeline settings UI from a YAML pipeline, edit your pipeline, choose ... and then Triggers.

Pipeline settings UI

Remove all scheduled triggers.

Delete scheduled triggers in the Pipeline settings UI.

Once all UI scheduled triggers are removed, a push must be made in order for the YAML scheduled triggers to start running. For more information, see Scheduled triggers.

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