Convert a contingent worker to employee from ORC

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Hi Experts,

For a contingent worker who’s already in our system, we need to process the job offer as an employee. 
When we try to transfer the record to HR from ‘Job Offer’, it’s asking us to fill up all details. 
However, we are expecting that it should carry over from job offer data.

Can anyone tell me if it is feasible, if yes can you please let me know how?

Thanks,