Why is QBO sending me to upgrade plan when I try to enter a bill?

Thanks for posting here in the Community, Veronica.

Are you using QuickBooks Online (QBO) Simple Start? If yes, I'd like to inform you that it is the most basic bookkeeping software that we offer and it's perfect for small businesses. 

However, we can only run financial statements, connect bank and credit card accounts, invoice customers and manage sales tax. With that being said, entering a bill in QBO Simple Start is unavailable, that's why you're being routed to upgrade your plan when you try to do so.

To enter a bill, I'd recommend upgrading to QBO Essentials or Plus. 

Here's how:

1. Sign in to QBO online as a primary or company admin.
2. Click on the Gear ⚙ icon and select Account and settings.
3. Go to Billing & subscription and make sure your billing info is updated.
4. In the QuickBooks Online section, select Upgrade your plan.
5. Check and review the available plans and when decided select Choose plan.
6. Follow the on-screen steps to upgrade your plan.

Additionally, you may click on this article that I've added to know which reports are available for your version of QuickBooks Online: Reports included in your QBO subscription.

Please let me know if you've got additional questions about managing your QBO subscription. Always here to help you. Take care.

@Veronika_M 

You can sign up for a separate Melio account for free to manage and pay your bills as a workaround and no need to upgrade your plan from Simple Start. But you can only integrate it with QBO Essential or higher plans.

https://affiliates.meliopayments.com/pricing