Symptom
While creating Person and Employment Audit report is not that Source of Change column is not filled correctly.
Environment
SAP SuccessFactors Employee Central
Cause
This is due Service Layer logic implemented in latest releases, now system store data in Last Updated by Source field with more details on source:
3275660 - Last Updated by Source Information Added to Employee Central History UIs - FAQ
However the Last Modified Source is still not support in Person and Employment Audit reports so should be reviewed in the history of the block.
Resolution
For now Source of Change is not supported in the current design reports.
There is an enhancement (ECT-253976) which will enable Last Updated by Source field in order to replace the Source of Change column in reports.
Keywords
ECT-253976, source, of, change, report, person and employment, audit, unable, blank, empty, no, data, error, last, modified, , KBA , LOD-SF-EC-REP , Reporting Data (EC core only) , Problem
SAP Knowledge Base Article - Public