This document is applicable only for Indian Business.
GSTR1 also called GST1 report is the monthly report which every register business need to submit monthly. Please refer to https://www.gst.gov.in/ for all GST laws.
From Innoventry billing software you can generate GST1 report from menu Reports -> GST Reports -> GSTR1 Report
and generate the file. You can import the file in Offline Tool to generate the json file.
