In the current status the user gets no error when using a compositional or non-isothermal model together with the facet coupling framework. However, it the respective laws are not implemented. In !1245, these are introduced. ~~But the issue with obtaining the effective laws used in the (dim-1)-dimanensional domain still needs to be resolved in a nice way.~~ -> Solved in !1684 by putting effective laws into the volvars.