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Pre-deploy workflows will execute when a deploy request is submitted if the checkbox to run the pre-deploy is selected. The project should have the Pre-deploy workflow selected in the configuration screen. The workflow inputs for Pre-deploy should be setup to match the corresponding Deploy workflow of the project. The deploy workflow's inputs will be available to the pre-deploy and deploy input and will show on the project deployment and release configuration screen. If they aren't also present in the Pre-deploy workflow, the data will not make it through to the deploy workflow.The Pre-deploy workflow inputs flow into the Deploy workflow inputs. For this to work, workflow developers must use the same name and data type for the Pre-deploy output(with "Return As Output" selected) and Deploy input variables in the respective workflows. To learn more about workflow inputs see Creating a Workflow.
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