Can I import using only an FPS XML and no employee CSV file?

Whilst we do not recommend it, this is possible.

The following missing information will need to be added/corrected manually afterwards:

1. All start dates
2. Auto-enrolment Pay Item status (Migrated status and Migrated date)
3. Emails/Usernames – the importer will create fake ones
4. Bank details, if used
5. Previous Pay and Tax – the importer will set these to zero

So it probably depends on how many employees there are.