We request clarification on MARKET MESSAGE 105 optionality for issue to the new supplier regarding Medical
needs and specials needs. At present in the market message it is described as ‘’see description’’
We seek this information to be automatically provided – where the data is available on the market systems – to
ensure the MM 105 is fully populated. As the large majority of data is currently resident in the host PES this would
ensure the market is provided with this information.
Accordingly the full message 105 should ONLY be sent to the new supplier from data provided by them or the
market. If there is any inconsistency this should be notified to the new supplier to enable accurate updates provided
for DSO.

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