A campaign can only act on Leads it can see within its WS and the Partition(s) it can see in that WS. If you are using a 1-1 WS/LS then there's really nothing to do here. Understanding Workspaces and Person Partitions - Marketo Docs - Product Documentation I am not aware of the ability for one WS to see the Assets of another WS. A WS can see multiple partitions and leads and act on the Activities for those leads. You can share Assets and maybe that's what you mean here?
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