It says, not allowed in Settlements.
Wilderness areas are good to go, however it is a bit of vague information.
Anyone has a list of these applicable "Wilderness" Shop locations?
Thank you!
From Wiki:
Cant own quarters, guild houses, boats and etc that are in or associated with Surface settlements. ((“Wilderness” quarters not associated with a settlement are able to be owned.))
Can't buy and sell from PC shops in Surface settlements. ((“Wilderness” shops not associated with a settlement are still usable.))