Invalid payment amount due. Payment Amount Due = Doucment Value - Prepaymentamount + Rounding Amount .

Cause:

This error occurs, if you have altered some values in the voucher and saved the voucher without opening the e-Invoice details.

Resolution:

If you have altered some values in the document,

1. In TallyPrime, open the voucher in the alteration mode.
2. Open e-Invoice details.
3. Ensure that the e-Invoice details are correct and press Ctrl+A to save.
4. Press Ctrl+A to save the voucher.