Hi Gina, This could be caused by a few different things: You said "mass updates", and whenever I see that phrase I think "backlog". It could be that the Marketo sync just hasn't caught up with the changes yet. Is the field blocked from updates in Admin > Field Management? Block Updates to a Field - Marketo Docs - Product Docs If it is, you may need to uncheck "Salesforce Sync" as one of the sources to block updates from. Grant
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