Power Fx function
Logic, variables, and flow control
Back
Returns to the previous screen.
What it does
Returns to the previous screen.
The job: Branching, looping, and state — the glue between reading data and changing it.
How to use Back
Start from the task, not the alphabet. If you are shaping rows for a gallery, reach for Back alongside the other data functions in its group; if you are saving, navigating, or changing state, use it on an event such as a button OnSelect rather than in a display property. When a formula misbehaves, check for a blank value where you expected text, then confirm the behaviour against the examples in the Power Fx function reference hub.
New to the language itself? Read What Is Microsoft Power Fx? first, then come back here when you need this specific tool.