When an import is complete you will receive a notification. These may take some time due to the amount of data you are importing.
Failed import notification
If the import fails, you will receive a notification similar to this:
Make sure you read the notification information carefully. You will see a section labelled 'Attached files'. There is an excel document attached to this notification which will inform you of why this import failed. You will need to read this and complete the necessary actions and re-import the failed records.
Successful import notification
If the import is successful, you will receive a notification similar to this:
Read the information provided carefully. You do not need to take any other actions if the import was successful.