Prevent or Alet an already rejected candidate entering a new requisition

Summary:

Prevent or Alert an already rejected candidate entering a new requisition; with an specific reason

We already have one flexfield in extra info for this information (rejected reason and if one candidate is re-contratable)

We use want to use something like black list, can we have an alert for the recruiter, or something to restrict this?

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Version (include the version you are using, if applicable):

23D

Code Snippet (add any code snippets that support your topic, if applicable):