1). This error arises when certain item data is absent in the order, necessitating a re-download of the order to resolve the issue.
Follow the instructions mentioned in this article: How to Re-download Orders into Webgility Online.
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​2). In certain instances, the item or customer data may have been updated in QuickBooks, prompting the need to re-download the data from scratch and save the settings.
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Refer to this article for step-by-step instructions on performing this process.