I just found out that the Solarman has build an open API. But pvoutput does not integrate with this API yet. I was checking out if there are more users that want to log their output from solarman to here.
The platforms are:
SOLARMAN Smart：https://home.solarmanpv.com/login build for endusers
SOLARMAN Business：switch home with pro in the link above → build for professionals
I emailed with firstname.lastname@example.org for API acces to the old portal and they offered to migrate from the old portal to the ‘new’ solarman smart without dataloss. So that’s great.
they made a thorough manual for the API too. I can share this, but not sure how.