Magento Customer Import Error Code: UNIQUE_CUST_ID_REQD

Error on Customer Import

Error Code: UNIQUE_CUST_ID_REQD

Error Message: 'Failed while creating customer, message:A customer record with this ID already exists. You must enter a unique customer ID for each record you create. To correct this record, click back and enter a new customer ID in the Customer field. Then, click Submit.'

Reason: A Customer record with the same First and Last Name already exists in NetSuite.

Resolution:

Enable the NetSuite 'Auto Generate Numbers' feature for Type Customer.

• In NetSuite, go to Setup > Company > Auto Generate Numbers.
• Under Type, enable for the type Customer.
• Once enabled, retry customer import.