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      QuickBooks Online Error: Business Validation Error: Unexpected Internal Error. (-30000)

      Exporting customer and getting the error "Business Validation Error: Unexpected Internal Error. (-30000) in QuickBooks Online. 

       

      Verify in QuickBooks Online if customer information has a value in "Customer Type".

       

      If so, rename the customer in QuickBooks Online. 

      Re-export the customer from AdvancePro. 

      Once successfully exported to QuickBooks Online, merge and verify the customer type does not have a value.