Format a file before importing a contact list into Constant Contact

[HSVPOA1]

There is duplicate info on the spreadsheet. Will Constant Contact remove the duplicates when uploading?

[William_A · Accepted solution]

Hello @HSVPOA1 ,

Since email addresses are what determine unique contacts, the last imported info associated with the same email address will be what's kept. Otherwise, in general, duplication is ignored, it's only applied when new associated contact details are being provided.