Customer details are read from the Tally party ledger
Taken from the Tally party ledger. To add a new customer, use the + button above so the ledger exists in Tally first.
No GSTIN on this ledger — treated as an unregistered customer
Decides CGST + SGST (same state) or IGST (other states)
These print in the invoice header. Leave any of them blank to leave that line empty.