A group of data elements which together give details of a supply source, and price and availability from that source. Mandatory in each ordinary occurrence of the <ProductSupply> block, and repeatable to give details of multiple supply sources.

Exceptionally, <SupplyDetail> may be omitted only within a partial or ‘block update’ (Notification or update type 04, see P.1.2) where a <MarketReference> is supplied, when the intention is to remove all previously-supplied Supply details for the referenced market (for example when one market is being merged into another).