SQL Reference
Is DATEADD supported in DESelect Segment?
question is dateadd supported in deselect segment? answer yes, dateadd can be used in the custom values section (output step) using the custom value > apply formula to a field > transform date example you want to give a voucher to customers on their birthday, that would be valid on the next 30 days you want to create a field with the expiration date, by adding 30 days to the customer's birthday