I am installing 2 x single phase inverters across 2 different phases and the DNSP requires export limitation per phase, what should be done?

If the DNSP requires export limit on each of the individual phases then a single phase smart meter will need to be used on each phase because the three phase smart meter will not do export limitation per phase. Under this scenario please note that you will not be able to set it up as a single system in Fronius Solar.web