EN 
FR Yes, in all cases, IRIS imports everything it needs by mapping the data from the imported file. Only emails are required.
You can import a pre-prepared file containing:
- email adresses
- start date
- end date
Or prepare a file containing only the emails.
How do I prepare the import file? Should I ask my clients for an Excel file containing only email addresses?
Context
Clients often send an RSU (social security statement) containing various data; does this require the file to be reprocessed before import?