To import a list of customers’ emails from a CSV file to a waiting list, you must go the section Waiting List Importer.
As a first step, you must select the product of the waiting list for which you want to import the file and click on Continue.
Now you can upload the CSV file and, if needed, overwrite the existing waiting list by enabling the related option.
Now choose the column you want to use as customers emails from those available and click on Run the importer.
Once the import is completed successfully, you will see a message like the one below.