Currently where an entire day’s readings are missing for Interval MPRNs for a D+4 data aggregation run the Data Aggregation system (OULPS)
generates estimates (kWh only) for use in settlement and also sends this data to Suppliers through Market Message 341. For the Enduring
Solution, this Discussion Request proposes to remove the requirement to send Data Aggregation estimated 341 market messages at D+4 (kWh
only). Further Harmonisation.