I have a job that creates a Perforce label after a successful build. I want Jenkins to sync my workspace to the most current label before successive builds. I saw the P4 label option under the advanced tab that looks promising but I don't know what parameter to use or how. Any suggestions? After a successful build is it possible to set the newly created label as a parameter for the next build?
Not really. The name of the label simply isn't available to downsteam build trigger actions. Just pass the changeset number downstream instead of using the label.