Hi jerome1978-3AbFfV, Since you are targeting 2 different locations, there shouldn't be any collisions. Both activities will be evaluated and shown to the targeted audience .Also since VEC activities are delivered based on the target-global-mbox all activities will be evaluated and content will be returned.
Please refer to Priority --> "Target Standard/Premium Visual Experience Composer Only or Form-Based Composer Using Global mbox Only ", which explains in detail about how the activities are evaluated and the effects of priorities and collisions.
I could be wrong, but I think if setup 2 recommendations activities only one will be triggered based on Audience & prioritization, right? Or is there a way to avoid the tests collisions and force the 2 tests to be displayed on the page?
hi jerome1978-3AbFfV Since you are considering using different positions on the page with everything like criteria, design being different, you could just setup two different recommendation activities. One for each location .