We have scenario, Salesforce updates the "Has Opted Out of Email" fields and in that case this udpates under the latest date and time stamp tagged lead in Marketo.
We want to make sure this gets updated in all the duplicates as well in marketo. However we tried creating smart campaign with following filter:
->Data Value changed for "Has Opted Out Of Email" with New Value = True.
-> Duplicate Field is "Email Address"
->Change Data Value "Has Opted Out Of Email" with New Value = True.
Result-> It has picked only one record,not all duplicates with email address got udpated.
Please let us know you have any other thoughts make sure to update duplicates records?