During the construction phases some Weeks were sold with Ultimate Occupancy provisions that allowed for example, a Gardenside Week Owner to stay in an Oceanside unit during the interim while the GS buildings were yet to be completed. (Not sure of the exact order of buildings off the top of my head but that's the gist.)
Ultimate Occupancy doesn't affect every Week at the resort. Those that are affected are designated with two unit types in an Owner's account, for example "Gardenside/Oceanside." That two-view designation also appears on any reservation confirmations. As well, the original purchase papers included an Addendum that clearly spelled out the provision as it applied to the specific Week being purchased.
This TUG thread has more info related to Ultimate Occupancy.
For resale purposes, be aware that the Unit Number specified in the deed may not reflect the actual building/view type being purchased. It's necessary to verify the specifics by contacting Owner Services - the resort itself will not be able to help because many of the onsite employees are not aware that UO even exists.
As far as I know, SurfWatch on Hilton Head and OceanWatch in Myrtle Beach are the only two resorts in the Marriott system which sold Weeks with UO provisions. At both resorts the interim placements ended quite some time ago with both resorts now being completely built out.
{ETA} It's nice to see your first post, Hobee. Welcome to TUG.