- Deprecate returnRefund, returnCreate, returnApproveRequest, refundCreate mutations and Return.suggestedRefund field; replace with returnProcess mutation and Return.suggestedFinancialOutcome field
- Exchange fulfillment orders now created only when exchange line items are processed; exchanges with buyer‑payable balance are placed on hold with AWAITING_PAYMENT reason
- Available from API version 2025-07; update apps to use new returnProcess workflow for refunds and exchanges