Hi, For one-time charges with server-set prices that vary per purchase, item.SKU in OneTimeChargeCreateRequest can be either: A stable SKU per item type, e.g. com.example.itemtype, reused across purchases. A unique SKU per purchase, e.g. com.example.itemtype., so each Sales Report row maps to one transaction. The SKU docs only state a 128-character limit and that App Store Connect does not store it. I have a few questions regarding the SKU management: Should we expect SKU rules to change, such as enforced uniqueness, character restrictions, or immutability? Any recommended SKU format beyond the length limit?