What does the EPC fault code P0456 mean in the Audi A6?

I recently got a P0456 error code on my Audi A6 and was wondering what it means and how I can resolve it?

The P0456 code indicates a small leak in your vehicle's evaporative emission control system. This could be caused by a loose or damaged gas cap or a leak in one of the hoses or valve of the system.

To fix this issue, first check and tighten your gas cap. If the problem persists, you may need to inspect the hoses and valves of your evaporative emission control system for any leaks.

Make sure to also check the vacuum lines for any cracks or damage as they can also cause this error code. If necessary, bring your vehicle to a certified mechanic for further diagnosis and repair.