To check your sales and earnings on TuneCore, you will need to log in to your TuneCore account. Once you are logged in, navigate to the "Dashboard" section. Here, you can find detailed information regarding your sales and earnings. TuneCore provides an overview of your performances, including revenue streams from digital music distribution and other services offered. You may see category breakdowns for sales by platform, album, and distribution type. Additionally, the reporting section will typically display monthly earnings and analytics, allowing you to track your progress over time. If you have any difficulties locating your sales data, it may be useful to consult the help documentation available on their website, which provides further guidance.