If you've seen the following message, it means that YouTube isn't currently a service on your G Suite domain:
This service is not available:
YouTube is not available for domain.com. Learn more about Google products you can use with username@domain.com. Did you use this product with a different Google Account? Sign out of your current Google Account and then sign in to the account you want.
How to add YouTube as a service
Only your domain administrator can enable YouTube on your domain. Let the domain administrator know you'd like them to turn on the ability to add YouTube as a service. Once they've done this, you should be able to add a YouTube channel directly to G Suite.
If you're the domain administrator, find out how to add services to your G Suite domain.
YouTube can't be enabled for my domain
If YouTube has not yet been officially launched in your country, YouTube cannot be enabled on your G Suite domain.
Check countries/regions where YouTube is launched
- Sign in to YouTube.com.
- Go to your account
.
- Select Location.
.A list of countries/regions where YouTube is launched will appear.
You can still create a YouTube channel on a consumer Google Account separate from G Suite.