Back at the Mobile World congress in February, Facebook said that they were working to better monetize mobile users and help developers build on the mobile web. One of the arenas that make developing on the mobile web difficult involve payments, they said.

To that effect, Facebook announced that they were working to make payments flow better from mobiel web apps, which would make it easier for users to purchase things and charge it to their carrier accounts.

Today, Facebook is rolling out this new mobile payments flow. It cuts the process from seven steps to two and is now available in both the U.S. and the U.K. on the majority of carriers. In the states that means AT&T, Sprint, and T-Mobile. In the U.K. it means O2, Orange, Three, Vodafone and T-Mobile. Facebook says the “low friction” carrier billing it on its way to more operators soon.

It really is pretty simple. Check out the process below:

If you’re a developer who already integrates Facebook payments, you don’t have to do anything. If you want to add Facebook payments, you can do so via the payments API.