For each folder, the Workflow Manager lets you create reusable schedulers so you can reuse the same set of scheduling settings for workflows in the folder. Use a reusable scheduler so you do not need to configure the same set of scheduling settings in each workflow.
When you delete a reusable scheduler, all workflows that use the deleted scheduler becomes invalid. To make the workflows valid, you must edit them and replace the missing scheduler.
To create a reusable scheduler: