When contact is defined in Scheduled Offering details and the user is enrolled to the Scheduled offering, the contact does not receive the SystemEnrollmentNotification.
SAP SuccessFactors Learning Management System (LMS) - All Supported Versions
If you are referring to Contacts within the Schedled Offering details, then the e-mail address is meant for including the address info in notification to users as Scheduled Offering contact person e-mail address and system will not generate any notification to that e-mail address.
System will generate emails to persons who are added as contacts in Scheduled Offering --> Related More --> Contacts and notify settings for Contacts is meant for these recipients only.
Make sure to maintain contacts in Scheduled Offering --> Related More --> Contacts.
Send notifications to Contacts is checked in the settings of scheduled offering.
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