Thanks for getting back to us to clarify something, Prav_U.
When upgrading your subscription to a higher level, there's not much you need to do when it comes to your data. We are only changing the subscription you are currently subscribed under the said account. Thus, you don't need to worry about any hassle when doing it.
You can browse this article to know more about upgrading and downgrading your subscription: Upgrade or downgrade your QuickBooks Online subscription.
After upgrading your subscription to Advanced, you can already add more users and manage their roles. Here are some links related to the users and their roles:
Then, you can also check out this link to see the usage limit per subscription: Learn about usage limits in QuickBooks Online.
Let us know if you need additional assistance in upgrading your subscription, setting up users and roles, or other stuffs within QuickBooks Online. We got your back on this. Have a great day!
