What versions of Sage 50 US is compatible with einvoicing?
Payment Center - e-invoicing
Plugin compatibility with e-nvoicing and Sage 50
Sage 50 2016 US update 2 – has Payment Center but is unable to take advantage of e-nvoicing because of SED plugin compatibility. Can be enabled but a connection cannot be established. Invoices will not load. Please update to Sage 50 US 2017 to take advantage of this service.
Sage 50 2017 US – compatible