Hi @Xiawanbai,
When you see “contact created from other campaigns” in HubSpot, it usually means that a contact was added to your database because of an action from a different marketing campaign than the one you’re currently viewing. For example, if someone filled out a form or interacted with a different campaign, HubSpot keeps track of that original source.
To learn how a contact was created, you can review their timeline in HubSpot. It will show you the specific campaign, form, or workflow that created the contact.