This video explains how you can test your email messages using Profile Substitution. It covers the following use case:
Suppose you want to send a personalized email newsletter. Before sending the newsletter, however, a colleague wants to review it and has asked for proofs. You can use the Profile Substitution features to send a proof, as it allows you to send an exact representation of the message that the targeted profile receives.
For more information, see the detailed product documentation.
This feature allows you to send profile personal information to external email addresses. Keep in mind that executing privacy requests (GDPR & CCPA) in Campaign Standard WILL NOT execute that request externally.