The customer uploads the Candidaes via API.
But if you do a resume/cover letter search for the uploaded candidate, it will not fetch the candidate
SAP Successfactors Bizx - Recruiting
While Uploading the candidate the customer wouldn't have maintained the payload to make the resume/attachment as searchable.
For those candidates, you need to run a update query for the searchable property under Attahment entity to be true.
sample update query
Post this update ,Attachment index needs to be performed for the resume to be searched .
resume search, Attachment , candidate uplaod via API , KBA , LOD-SF-RCM-INT , Integrations & Intelligent Services , Problem