DDK_* errors in cProjects

Hi

I am getting frequest errors "The value selectedKey = "10" in DropDownByKey "DDK_PLAN_WORK_UNIT" does not exist in the value list and is not initial either" or "DDK_ALLOCATION_UNIT: etc when using cProjects. To my knowledge I have made configurations in backend from configuration guide.

What could be the root cause for such Drop Down errors?

Regards

Senthil