SaphetyDoc (DOC+) is Saphety’s SaaS billing software certified by the portuguese tax authority (Autoridate Tributária e Aduaneira).
The list of certified softwares can be found here
SaphetyDoc certification number is 1835
This document is intended for developers that need to consume SaphetyDoc (DOC+) API to fully automate invoice issuing from third party systems.
After reading this book you should be able to fully automate any system integration with SaphetyDoc (DOC+).