Import of Background Data fails with following error: "(date field) has wrong date format" when the concerning date field is set to earlier than 1/1/1970.
The issue only happens when performing imports, either via Extended User Information or via Live Profile Import job (back-end). But when manually adding the date to the portlet, it saves just fine.
SAP SuccessFactors Employee Profile
This is a known issue, planned to be fixed on November 12nd, 2021.
Import, Live Profile Import, Job, Backend, Background Data, Date, Field, 12/31/1969, 01/01/1970, Fail, Failed, Error, (field) has wrong date format, PTCH-37279 , KBA , LOD-SF-EP-JOB , Scheduled jobs , LOD-SF-EP-BGD , Background Jobs , Known Error