Generally, you will be asked to move these applicants to a hiring step in a different workflow.

If there are already applicants involved in a hiring workflow, you will be asked to move these applicants to a hiring step in a different workflow when you:
  • Transfer applicants to another job
  • Change the hiring workflow of a job
  • Remove hiring steps in a hiring workflow
  • Delete a hiring workflow
Please ensure that you are moving applicants to an appropriate new hiring step when you do any of the above.

More info: How can I edit or add steps to my hiring workflow?