In physical matchcodes (update types A, S or P), the matchcode data is stored redundantly in separate tables in the system. You have to build these tables after you have created and activated the matchcode object and the matchcode IDs. The tables are built and deleted using the matchcode utility (report SAPMACO). The procedure used to build the tables is the same for all physical update types (A, S or P).
The matchcode utility operates globally across all clients. A parameter controls whether matchcodes are to be built or deleted for a specific client or for all clients. The utility also permits matchcodes to be built for all matchcode objects at one time.
Transparent matchcode IDs (update type I) and classification matchcode IDs (update type K) are not stored physically. Therefore, there is no reason to build such IDs with the matchcode utility.