Message: SEVERE: There are # DUPLICATE ENTRIES for Customer: {BILL FIRST NAME BILL LAST NAME} - Enter Order Manually
Explanation: The Customer Match settings that you have selected on import, there are still multiple customer records available to merge with.
Suggested Resolution: Select Customer Match criteria that is more specific.
Special Considerations: Regularly running a Customer Dedupe in your instance will merge multiple customer records existing for the same customer, which will potentially eliminate this scenario.
If the above suggestions have not helped you to resolve your error, please contact OrderLogix Customer Care for assistance. Thank you!