Apple Watch complication

Hi, why the both the Complication on Apple Watch since WatchOS 7 or on iOS 14 widget, the Budget never refresh real-time everytime I add transaction from Watch ? I must open the iOS App once so it will be refreshed.
It will be great if the Budget Complication on Watch can be directly updated whenever I add transaction, because Apple Watch now can directly connect to server without need the help of iPhone anymore, and also can be standalone App.

Thanks.