In this tab details of credit or debit notes issued in respect of following supplies:
- Inter-State taxable outward supplies made to unregistered persons, where invoice value is more than Rs. 2.5 Lakh (B2C Large) and
- Export invoices.
https://tutorial.gst.gov.in/contextualhelp/Einv/CDNUR.htm
B2C(Small) are shown net of Amount(Sales-Credit Note)