static void mergeDimensions(Args _args)
{
    SalesLine salesLine;
    MainAccount mainAccount;
    LedgerDimensionAccount ledgerDimensionAccount;

    // Get source dimension values (for example from SalesLine-Record)
    select firstonly salesLine
    where salesLine.SalesId == "20001"
       && salesLine.DefaultDimension;

    // Get main account
    mainAccount = MainAccount::findByMainAccountId('0500');

    // Merge main account and source dimension values and return RecId which can be used as ledgerDimension
    ledgerDimensionAccount = DimensionDefaultingService::serviceCreateLedgerDimension(mainAccount.RecId, salesLine.DefaultDimension);

    info(strFmt("DefaultDimension (Source RecId): %1 LedgerDimension (Merged RecId): %2", salesLine.DefaultDimension, ledgerDimensionAccount));
}