I hope you are all aware of the below recent update form Salesforce!
Please share your advise to achieve the below,
1) As per my understating the BEST PRACTICE would be to create Business Unit and use it as a Testing environment/Sand box! - Please correct me if I am wrong.
2) How would I move my contents[Emails, images, Triggersend Defns. etc] from Sandbox to this new BU in Production.