I'd add them to a list in the lead database and label it as suppression; then build your smartlist for the send. Marketo will add them to your database since you're uploading them....
Something had changed with territory alignment that wasn't reflected accurately in the SFDC profiles. Once that was double checked, we realized that there was a cross-exposure with...
I've had a similar issue with product interest. I think the easiest fix we implemented was changing the field type in SFDC, which allowed them to have multiple selected (multi-sele...
If you have great developers, you can also use the API to integrate views from a variety of platforms including YouTube.http://developers.marketo.com/blog/send-view-data-from-a-you...
It depends on how your sync is set up and your lead routing rules. Are you routing leads using Marketo or Salesforce? Is it ALL data that you want to block or a particular subset?
Is is a static list or a smart list? If you're moving from static list to static list, you can easily run the flow action of "add to list" and change the criteria that you want ref...