How to retrieve receipt number details for AP PO reconciliation summary balance against vendor

Hi,

We developed one custom report to finding detailed AP PO reconciliation summary balance based on suppliers with PO and receipt number. But it is not matching with GL accrual balances.

We do write off some values since we are changed accrual account difference for each organization.

Kindly help to get data to make it to achieve the same.

Thanks,

Narasimhan