In QuickBooks Online there are no Product numbers, only Company ID's. You can find your Company ID by navigating to the Gear icon, Select Account and settings then click on Billing and subscription. At the top of the page you will see your Company ID. If you are using the QuickBooks Online App, you can find the Company ID by heading to the Question mark at the top right hand corner, click on About, this is where you will see your Company ID in the QuickBooks App.
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