# MeteringResponse Upon receiving and processing a Metering message, the receiving implementation must reply with a MeteringResponse, indicating whether the update was handled successfully. ``` ``` | | | |---------------------|------------------------------------------------------------------------------------------------------------| | Metadata | The metadata for this message. For details, see section [metadata attributes](metadata-attributes.md). | | ReferenceMessageID | MessageID of the Metering message that has just been accepted or rejected. | | Result | Indication whether the order was accepted or rejected. | | RejectionReason | In case the metering was rejected, this attribute must contain a human-readable description of the reason. |