consumer to gateway date format problem

Hello,

Problem is when ui5 app is passing date in format: YYYMMDD, app is passing '20141029 '

In odata data model this date type is DATS (char 8)  YYYYMMDD

the error at GW is

Der Wert 20141029 stellt kein gültiges Datum bzw. keine gültige Zeit dar.

means: The value 20141029 is not a valid date or a valid time.

Any idea ?

Thank in advance

Lucas