3040920 - Application Error is Received in Personal Data Collection for Rehires - Onboarding

An application error is being received when trying to complete PDC step of the rehire candidate.

SAP SuccessFactors Onboarding

1. Login as the candidate.
2. Complete the Personal Data Collection Step.
3. Application error is received.

Or

1. Login as a responsible user.
2. Complete the Personal Data Collection step on behalf of the candidate via the 'Actions' tab in the Onboarding Dashboard.
3. Application error is received.

The issue would cause from the SL layer or such.

Support engineers, please see internal note for logs.

This could be with some stalled data that needs to be refreshed by following the below steps:

1. Please remove the draft details of the candidate and attempt to complete the step again.
2. If the issue persists, try restarting the candidate process and completing the step once more. 

If the same will persist, could you please remove the dependents information and try to submit. 

query did not return a unique result: 2, org.hibernate.NonUniqueResultException, Application Error, PDC step error, rehire issue, INC0481357, Could not set up parent child links between fields for parent=null, No row with the given identifier exists , KBA , LOD-SF-OBX-PDC , Personal Data Collection , LOD-SF-OBX-RCM , Initiate onboarding from RCM , Problem