We're looking to make sure two fields in SF CRM HasOptedOutOfEmail and Contact_Does_Not_Want_to_be_Contacted__c align with our subscriber status in marketing cloud. On the SFMC side our subscriber key is Contact/Lead ID. We are the only BU in the enterprise that uses contact/lead ID as subscriber key, the rest use email address. When we are updating subscriber status in Marketing Cloud to align with SF CRM should we be doing the update at the BU level or at the Admin level or both? Will updating at the Admin trickle down to the BU?
whenever you update the subscriber via import activity it always affects all the BU level subscriber. You are affecting the parent level by definition.
When you change the status from Active to unsubscribe from the child , you have an option where you can define the unsubscribe at the child level without affecting the parent level from the setup.
here is the article :
https://help.salesforce.com/s/articleView?id=sf.mc_es_unsubscribe_settings.htm&type=5
