The inconsistency was due a permission problem.You should be able to achieve this using only "Update Data" nodes to insert Coupons e Coupon Values.

Hi hemantsharma!I'm trying exactly the same.We need to create coupons dynamically, depending on an external list.Do you know that the Adobe Campaign already counts on a Coupon structure?Maybe this will help you to start: Personalized couponsThis structure already picks randomly coupon values for eac...