How to reduce figure in accrual account in TB as at a particular period.

Summary:$1m is showing in accrual account in TB as at Dec-21. Is it possible to reduce the figure as at Dec-21 now that we are in Apr-22.

We have identified some POs that we need to closed out. My understanding is receipt accounting process will pick up PO status = Open, closed for receiving and closed for invoicing. We have quite number of them that weren't closed properly which are still showing closed for receiving and closed for invoicing.

NB: Most of those POs (Closed for invoicing, closed for receiving) have been paid.

This is what i have in mind and i need an advice if it will work.