Hello,

I'm taking over an existing Campaigns, and try to figure out what has been done. I know that

- there is a monthly sync with CRM

- contacts have been uploaded into lists using Excel Sheet

My aim is to clean a bit all contacts, how can I find contacts that have been uploaded, and are not synchonized with CRM ? I hope to get a view in All Contacts, with a column "CRM" or "sync"...but no. How would you do ? how should I do ?

The end goal would be to have these uploaded contacts as lead in CRM.

Thanks