Saves the outcomes of practice exercises the learner actually attempted. confirmed records that the learner approved saving each included result, including failures; Polidict does not grade answers and stores the reported rating and whether it came from model assessment or learner self-assessment. Pass the batch's practiceId and a new requestId per submission; identical retries are idempotent. Each result needs the word's latest expectedVersion; a stale version returns WORD_CHANGED without saving. The response's progressSaved=true confirms the save, and updatedItems carries the new versions.