graph TD A[Transaction creation is triggered] -->|fail?| CREATION_ERROR A -->|success?| INITIALIZE INITIALIZE -->|failure| CANCELLED INITIALIZE --> IN_PROGRESS IN_PROGRESS -->|failure| FAILED IN_PROGRESS --> CANCELLED IN_PROGRESS --> RECEIVED RECEIVED -->|processed| SETTLED RECEIVED -->|return process| SENT_BACK_PENDING SENT_BACK_PENDING --> SENT_BACK_SETTLED