Before you begin
Configure API access, create a test contact, and save its UUID asCONTACT_ID.
1
Create the audience
id as AUDIENCE_ID.2
Add your contact
3
Check membership
Expected result
Your contact appears in the audience membership response. Creating an audience does not launch a campaign.Troubleshooting
Manual membership changes apply to static audiences. For a live audience, membership follows rules. A404 can mean an ID is absent from the key’s organization. See Audiences API.
Next: build a flow.