The product supply block covers data Groups P.24 to P.26, specifying a market, the publishing status and representation detail of the product in that market, and the supply arrangements for the product in that market. The <ProductSupply> composite is repeatable within the block to describe multiple markets. At least one occurrence is expected in a <Product> record unless the <NotificationType> in Group P.1 indicates that the record is a partial update notice which carries only those blocks in which changes have occurred.

Note that for many products with simple supply arrangements and a single market, many details of that market are ‘inherited’ from Block 4 and need not be repeated.