This is related to India Localization of GST. I had tried to add voucher number (Sale Invoice Voucher number) to GSTR1 report from electronic reporting format designer via binding process but I was not able to find this voucher number field there to bind it. I am new to electronic reporting configuration does anyone help to how to configure so that in GSTR1 report I can have sales invoice voucher number along with GST reference number sequence.