In general, ( but seek Sunsynk-specific confirmation), the voltage limit is a hard limit that must never be exceeded, and the current limit can be considered more forgiving.
MPPTs (Some?) offer reverse polarity protection, and that is the basis for the current limit. When you exceed that, the reverse polarity protection may fail. But of course, you only need reverse polarity protection if you swap the PV pos. and neg.
So assuming you get your polarity correct, the current limit is a broader recommendation that, when it is exceeded, causes the MPPT to clip its power output. Designing in a small amount of clipping can be a good thing and is by all accounts considered best practice in Australia. Obviously, vastly exceeding the current limit is inefficient, so it isn’t done.
See here for which panels specs are relevant to an MPPT and how to interpret your own: