Northern Trail Outfitters (NTO) has subscribers opt-in to its marketing program via email or SMS.

To honor the opt-in communication method of subscribers inJourney Builder, Northern Trail Outfitters (NTO) should create one Entry Source for each messaging channel (email and SMS). This ensures that the journey can differentiate and respect the preferred communication method of each subscriber based on how theyopted-in. Each entry source can then be used to trigger the appropriate welcome series content for the respective channel. Reference:Salesforce Marketing Cloud Documentation