Field help (GCM1LEDTYP) 

The grid automatically displays the ledgers contained in the local menu 2644. There can be up to 10 ledger types, which generally are:

Each accounting movement is given a "ledger type", regardless of it being directly entered by the user in entry mode, generated via automatic journals from another module or imported from an external application.
In a given model, if no ledger code is specified for a given ledger type, this ledger is not populated.