It is possible for a contract to be discharged by performance even though one party breached the contract if the breach was waived.

Question

Quizplus · Accepted Answer

If one party breached the contract but the other party waived the breach and accepted performance, then the contract can still be discharged by performance. This is because the waiving party effectively gave up their right to enforce the original terms of the contract and accepted the new terms that resulted from the breach being waived.

It Is Possible for a Contract to Be Discharged by Performance