Notification 51/2023 dated 29.09.2023 has introduced Table 5B in GSTR 5A w. e. f 01.10.2023. In this notification, Table 5B has been introduced to report supplies made to Registered GSTINs (B2B supplies). This would be implemented shortly at GSTN and till such time, OIDARs are advised to file the return in the existing GSTR 5A itself.
Thanking you,
Team GSTN