Hi there, Alex. Class tracking is a QuickBooks Online (QBO) Plus and Advanced feature. When you downgrade to Essentials, your historical profit and loss reports by class won’t be accessible moving forward since class tracking is no longer available in that subscription.
Please note that your historical data doesn't disappear, but without the class tracking feature active, you won't be able to run that report to view it. Before you downgrade, I recommend exporting any P&L by class reports you might need so you have that data on hand.
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