Sorry - I was looking for default values instead of at rules! Your XPath is incorrect. The correct condition for Rule 1 on HoursNewStatus would be: substring-before(xdDate:AddSeconds(xdDate:AddDays(../my:SubmitDate, substring-before(., ";")), 0), "T") != substring-before(../../my:Credit/my:CreditOwnerAssignedDate, "T")
Hilary Stoupa