Error Message: Duplicate Document Number

If our integration tries to create a Sales Receipt in QuickBooks Online from a Shopify order that was previously exported or created in QuickBooks Online, the export will most likely fail with the "Duplicate Document Number" error. For example, if you have a Sales Receipt in QuickBooks Online with document number #1001 and then try to export a Shopify order with order number #1001, the export will fail as you cannot have multiple Sales Receipts in QuickBooks with the same document number.

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