Default in Recruiter - Autocomplete Job Requisition and mark recruiter automatically

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Default in Recruiter - Autocomplete Job Requisition

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When hiring managers create a requisition how can we default in a recruiter (as a dummy recruiter) as we wont always know who to select. Can this be done by auto complete ? If yes , is there any specific code which needs there on auto-complete and what are the fields required to have this.

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