Job Code Configuration Advice-New to TBE

Summary

Looking for Advice-Job Requisition Job Code

Content

Hi, We use Peoplesoft Position Management and are using the Position data fields to drive many of the Job Requisition content in TBE (location, salary etc using an API). Position number is a one to one relationship to Job Code. Job Code is a one to many to Positions.  I feel that I should use the Position Number as the TBE Job Code but not sure what the system wide implications are to TBE. May I obtain advice on the decision points that should be considered in making this decision? 

One of the benefits I have seen with Position Data is that we will be able to search on Position which we would do more often than on job code.  Short notice I know but we are anxious to hear any of your advice.