Agent Should Own Contacts they Enter in Team Database
If an agent on a team creates a contact on their personal side, and then immediately pushes it over to the team side, it keeps them as the owner of the contact. So in the case of them leaving the team, they can easily recover these people. However, if they happen to manually create the contact while under the team side in the first place, it makes the team the owner of the contact, making it very difficult for them to recover the contact.
This makes it very difficult to differentiate contacts that the agent enters themselves, which should belong to them, and contacts which are created by the team and assigned to the agent, such as those from a team-owned lead source which should stay with the team.
