Switching PPU to Capacity impacts on data assets

We've been setting up our PBI solution under a PPU licensing model, however we're about to switch to a Premium Capacity (P1) license. I assume this means changing over the tennant and switching Workspaces over from PPU to PC...

Will these changes impact the existing assets (reports and datasets etc) in any way? I.E. especially internal asset GUIDs or URLs etc?

We have numerous Excel workbooks with ConnectionStrings that reference Dataset GUIDs in PPU Workspaces. We're concerned that these might change when switching to PC.