Flow Steps
Step 1: Get Shopify orders
Export the Orders:Order from Shopify
Here only modified orders from Shopify are exported to NetSuite

Step 2: Import NetSuite customers
Here the imported record is customers
Operation executed is add or update
Existing customer are found using the lookup criteria (filter)
Either using customer ID or using customer email ID

Map the required fields in import mapping
Response mapping : import response field- id is mapped to export record field – Customer Id
Step 3: Import NetSuite sales orders
Here the imported record is sales order
Operation executed is add
Existing records in NetSuite are ignored using the filter : tranid is id

In field mapping , customer id, shipping address , billing address, payment method and date are mapped.
save and close