Data Migration Tool
The following fields only exist in Magento 1 extension and no longer needed in Magento 2 extension:
last_purchase
last_login
last_transaction_id
total_order_count
total_order_amount
first_purchase
first_transaction_id
These fields MUST be excluded from the data migration process.
The configuration for all fields to be migration can be found in this file:
<magento2_root_folder>/vendor/magento/data-migration-tool/etc/commerce-to-commerce/eav-attribute-groups.xml.dist
Add the attributes above into the ignore list:
<attribute type="customer">last_purchase</attribute>
<attribute type="customer">last_login</attribute>
<attribute type="customer">last_transaction_id</attribute>
<attribute type="customer">total_order_count</attribute>
<attribute type="customer">total_order_amount</attribute>
<attribute type="customer">first_purchase</attribute>
<attribute type="customer">first_transaction_id</attribute>
The result should look like this: