13.9.10.1 Aggregation to the Management Ledger

An allocation rule is written to aggregate one column from an instrument table to the Management Ledger table. Common aggregations include ending or average balances or interest income or transfer charges or credits to specific Financial Elements in the Management Ledger table. Frequently, there are other non-interest incomes or non-interest expense columns that you may want to aggregate to the Management Ledger table. For any column to be aggregated, the operation for CASA is functionally identical to the same aggregation from any other instrument table. Users need one such rule for each instrument table (one rule per table per column to be aggregated). Additionally, if adding a new instrument table, you must add another rule. If there is a family of such rules, for example, 10 rules per table (to aggregate 10 columns), adding another Instrument table means adding 10 more rules.