What controls the charge current for EVCS in auto mode?

I’m just wondering if it’s the car that’s telling the charger what current to use or if it’s the Cerbo calculating it depending on home battery SOC and solar input. This is for an off grid system.
I can charge the car at 32A in manual mode but when I change to auto it maxes out at about 22A and fluctuates all over the place. I have the auto setting to start charging at 70% and stop at 60%. The home battery was between 76 and 80% when I was monitoring it.

can you share a video from the main webpage of the EVCS while trying both methods?

Yes I’ll do it tomorrow as its finished charging now.

I just watched off grid garage and have now enabled “Allow low excess solar power for auto mode”. Once I get back from a drive today I’ll do some more testing and take some videos.