1. After you select a Send Entity and click the Send Salesforce Marketing CloudEmail button, the send dialog opens.
2. Complete these fields.EmailField Mapping SetSubject
3. Email
4. Field Mapping Set
5. Subject
6. In the first From dropdown, select Commercial Send Classification.
7. In the second From dropdown, select which send classification to use from the Marketing Cloud. Note If the field is blank, you must configure a sendclassification in Marketing Cloud.
8. Once you select a send classification, fill in any additional information needed and select OK to send the email.