Two of the most common runtime flow failures now get caught while you are still building.
Where
The Create Records element in Flow Builder.
How
Flow Builder alerts you when required fields lack assignments before the flow ever runs. It also warns when a value could exceed the target field's character limit, the kind of bug that only fails intermittently on long inputs.
Why
These errors used to surface as cryptic runtime emails long after deployment. Catching them at design time turns production incidents into red squiggles.