Treasury - ONC Short term transactions monthly interest accruals to be updated

HI Team,

I am having a issue with Treasury

1) Need to change the Day count basis from 30/360 to Actual360 after generating interest accruals.

The issue is instead of Actual360 we have take the 30/360 and generating interest accruals for almost of all the ONC short term transactions

now I am getting the difference of one day of every month accruals.

is there any possibility to update monthly interest accruals or updating from 30/360 to Actual 360 so that system will calculate the interest accruals based on Actual/360

Please do the needful on this issue