Current settlement situation by Design

Example:

2 invoices and 1 credit note were settled while receiving the payment:

1 Invoice with 100 EUR

1 Invoice with 50 EUR

1 Credit Note with 50 EUR

Later the settlement for customer transaction of the 50 EUR invoice and 50 EUR credit note were reversed. 

This also reopened the EUR 100 invoice, but with a balance of EUR 0.

Cancelling partial settlements is a common process. No further items of the settlement should be opened when cancelling partial settlement.