What is the Anmeldebestätigung?

The Anmeldebestätigung or Meldebestätigung confirms that you registered your address in Germany. You get this document during your Anmeldung appointment. It looks like this. This document is often required to open a bank account (with some exceptions) or get a cellphone contract. This document is often called a Meldebescheinigung, because both documents have the same purpose.

For more details, see this guide.