unconfirmed applications should be deleted after 30 days

Summary:

If the applicant do not verify themself within 30 days, the application should be deleted. How can this automation be setup in the instance? We have already checked this in Enterprise Recruiting and Candidate Experience Information, in that "Candidate Auto-confirmation" is already unchecked in the box but didn't find anywhere to add the number of the days after which the application should be delete. Can somebody help ASAP?

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