Yes, the Business Feed feature is available in all QuickBooks Online (QBO) versions including Simple Start, Lynneb99.

The Business Feed is designed to accelerate your business by seamlessly integrating AI-powered assistance with human expertise, all in one place. To customize what appears in the Feed, just dismiss items you don't need and select the automated features you want to turn on. To learn more about this, check out this article: Use the Business Feed in QuickBooks Online.

If you need to downgrade your QBO Essentials to the Simple Start version, we don't have to re-enter everything (such as company, customer, vendor, and employee information). However, downgrading will remove all discounts and extra users from your current plan. Also, some additional features like multicurrency, inventory tracking, project tracking, and recurring transactions will be unavailable since the Simple Start version doesn't support them.

You can refer to this article for the detailed steps and things you should know before downgrading: Upgrade or downgrade your QuickBooks Online subscription.

If you require any additional assistance with managing your QuickBooks Online account, revisit this post.