Splitting by Group Membership

Use the Split by Group Membership node to direct a contact through different branches of your flow. This lets you tailor messages based on the groups a contact belongs to.
For instance, you can prevent people who already finished a prior registration flow—where they were placed into a group—from starting it again:
By branching on group membership, only contacts who aren’t in the Completed Registration group will continue through the flow. Those already in that group will receive an alternate message confirming they’ve completed the separate registration process.
You can add or remove contacts from a group either manually or within a flow.