[SD] Massage Chair and Table - Not able to have customers

It should work actually. Try selecting the "Promote on Simstagram" option to attract some more customers. I suggest to not do this on your home lot, though, as Sims have to first knock on your door to be let in in order to start giving manicures/pedicures/massages or start yoga/meditation classes. If you set up your portable massage tables/chairs or yoga mats/mediation stools in venues such as spas or gyms then Sims will automatically come to you once you select the "Tend" option.