There could be a number of reasons why revenue isn't appearing on your YouTube account. For example, it could be because:
-Your channel isn't monetized: In order to start earning revenue from your YouTube channel, you need to monetize it. You can do this by going to your YouTube channel's "Monetization" tab and selecting the "Enable" option.
-You don't have enough subscribers: In order to start earning revenue from your YouTube channel, you need to have at least 1000 subscribers.
-You don't have enough views: In order for your monetized videos to start generating revenue, they need to have accumulated at least 4000 watch hours over the past 12 months.
-Your account isn't in good standing: If your YouTube account isn't in good standing, then you won't be able to generate revenue from it. To find out if your account is in good standing, you can check the "Status and Features" section of your YouTube account.
-You're not using an AdSense account: In order to start earning revenue from your YouTube channel, you need to be using an AdSense account. AdSense is a program that allows you to place ads on your website or YouTube channel, and earn money from them.
If you're not sure why revenue isn't appearing on your YouTube account, you can contact YouTube support for more help.