I will keep that in mind with future projects.  Thank you.   In the case of this project, the previously filled fields in Contact List B were not updated when Contact List C was created.   All the same fields were represented.   ... View more

After uploading a unique Excel spreadsheet .csv file and created Contact List A - I did the same for Contact List B, and then again for Contact List C.   For every email address that was present in Contact List A, B, and C - I noticed how the Gift Card field in Contact List A was deleted.   Campaign A  / Contact List A - John_Doe@email.com   Gift Card field = ABC-123 Campaign B / Contact List B -  John_Doe@email.com  Gift Card field = DEF-456 Campaign C / Contact List C - John_Doe@email.com   Gift Card field = GHI-789   ... View more

What if you are sending a unique campaign to a specific list - and the email address is present on (3) different contact lists?  AND the email address is linked to a unique data (field) on each contact list - data that is being used in the campaign.   Example: Campaign A  / Contact List A - John_Doe@email.com  $20 Campaigin B / Contact List B -  John_Doe@email.com  $50 Campaign C / Contact List B - John_Doe@email.com   $100 ... View more