The user in the route map should have access to Job Application fields
SAP SuccessFactors Recruiting Management - All Versions
User in the Route map will not have access (Visibility or edit) access to the application fields.This is the Product behaviour.
If the user need to to view/ edit the application fields, then he should be part of the operator role for that requisition. Only then he can see the application fields.
Route map, Job Application , KBA , LOD-SF-RCM-APP , Applicants and Job Applications , How To