Back Button -prompted whether to save current work before canceling an action

Back Button

The Back button exits out of the current activity and returns to the previous activity. You are prompted whether to save current work before canceling an action. The text in a Back button may differ and the activity to which it returns depends upon its location in the application.

Can you please help for which functionalities this feature exists,

I tried and found that this feature mainly exists for Inventory functionalities like, receiving, shipping,stock count and inv.adjustments. Other than these do any functionalities have this feature?

Thanks,