To fulfill an order and complete the transaction in Rakuten you must do two things in Shopify:

  1. Mark the order as fulfilled
  2. Provide tracking information

If you do not perform these two actions then the order cannot be marked as fulfilled on Rakuten as this is a requirement.

To fulfill an order in Shopify do the following steps:

1. Push the "Mark as fulfilled" button

2. Insert tracking information

3. Press "Fulfill items"