In email marketing, Groups and Tags help you with organising the contacts list. They both have slightly different purposes. Groups are the broader categories within your contacts list. The Contacts can be grouped based on their characteristics, interests, or a signup source. Whereas, Tags can be classified as specific labels that are assigned to individual contacts based on their interactions or behaviours.
For example: Let’s say your contact list is a library. Groups are like sections (fiction, non-fiction), while tags are like individual book genres (thriller, romance).