Once your organization decides to consider a prospect for a particular job, you can convert the prospect into a candidate and funnel them through a job's interview plan.
You can convert any prospect that is attached to a job as long as you're Job Admin and above on the job.
To convert a prospect into a candidate, go to the prospect's profile. From the Jobs tab, click Convert to Candidate.
In the Convert to candidate prompt, select a job name and stage for the converted prospect. Then click Convert.
The prospect will be added as a candidate on the job.