Does anyone know how I can reset/ cancel my in-app purchase status from TestFlight account?

I install and test my own app, in real device, from TestFlight.

I want to able to keep testing on the in-app purchase/ subscription feature.

I notice once I have purchase an item success (I was prompted to enter password during purchase), it will forever be marked as purchased.

In simulator, if I uninstall then re-install again the app, the in-app purchase status will all be reset.

However, for TestFlight in real device, I do not find a way to reset my purchase. (So that I can keep testing on the purchase process)

Does anyone know, how I can reset/ cancel my in-app purchase status from TestFlight account?