Field help (BTCBALUPD) 

Select Yes to include balance updates in the account task process. The number of balances is included in the No. of records to process for each task.

This option is only available if the UPDBALBTC – Update balance parameter is set to Yes (CPT chapter, ACC group).

This option is only available if the MULBATCH - Multi-instance batch task parameter is set to Yes and if the current accounting task is not active.

If the MULBATCH – Multi-instance batch task parameter (CPT chapter, ACC group) is set to No, you cannot modify this field.