What data is required on your upload template? Mozeo Support Updated September 01, 2015 19:50 Follow The only data required for the upload to work is phone number and/or email address. All other fields are optional. Related articles How do I upload/import my contacts? Can I upload my contacts into a group? My contacts are not uploading? What is the maximum length of a text message? How do I opt back in a contact? Comments 0 comments Please sign in to leave a comment.