Durable unsubscribe on custom field
We have a unique use case we're wondering if you could help with. We have two products using the same marketo instance without a partition. Our engineering team has done work to separate the unsubscribe job to feed two custom fields - but we're worried about durable unsubscribes with these new fields. Is there a way to change these new fields to operate the same as the global "unsubscribe" field does as far as durable unsubscribes?