If you want a runtime workflow to execute a task that is not provided by a built-in runtime action, you can create a custom computed runtime action to perform the work.

The CentraSite Business UI contains a default set of actions, where each action represents a collection of predefined parameters.

Your CentraSite installation contains a sample computed action as an extension in the <CentraSiteInstall_Directory>/demos folder. You can adapt the sample computed action to suit your needs and then configure the custom action to display in the policy accordion.