To add a new user to your farm, go to Farm settings in your mobile app. Note, that you need the email address of the co-worker to invite them to your farm.
From Farm settings > select Manage Members > Invite > Select the role of the user > add the email address > Send
Tipp: In case your co-workers do not have an email address or do not want to use their personal email address, we suggest that you set up email addresses for them either using your own domain or using a service like Gmail.
This way, the email address can be reused with different seasonal workers over the years.