2405802 - Date Format Error While Importing Foundation Data or MDF Record

We have a large number of import jobs scheduled to run daily that are of the type "Foundation Data Import".

The application error id would be accompanied by: "Effective start date cannot be null.,effectiveStartDate: 22/10/2014 is not a valid date value.","".

I suspect that something has changed so that dates  are now expected to be of a different format than the one we have used so far (dd/mm/yyyy).

(Nothing has changed in the way the data files, that come from different sources, are sent to Employee Central.)

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

• SAP SuccessFactors HCM Suite
• SAP SuccessFactors Employee Central 

Date Format, User Locale, Effective start date, cannot be null, Effective start date cannot be null, effectiveStartDate, Import, Metadata Framework,MDF , KBA , LOD-SF-EC-FOO , Foundation Objects (Organisation, Pay and Job Structures) , Problem