good day @lubos
the govt has approved and are introducing E-Invoice for businesses which will sooner or later will become mandatory in India. this topic is for discussion regarding the same which would help with smoother implementation within Manager.
the official link https://www.gst.gov.in/newsandupdates/read/326 provides all the basic details necessary to understand the E-Invoice concept, the schema and the template.
@lubos i can ensure my support and suggestions to implement the same.