Possible to un-apply after running "adjust Exchange rate"

Hi All,

I have an Invoice and Payment in same currency, other than local currency, with different exchange rate.

While applying exch. gain/loss has taken place and “adjust. exch. Rate” also adjusted the entry later.

After the above steps system is still having value in Remaining Amount (LCY) with entry as closed. which should not be the case.

Is it possible to un-apply the entry and re-apply the invoice against the payment.

Kindly advise.

Environment : NAV SP3. / SQL / Singapore database.

The below are the transaction.

Vendor Ledger Entry
Posting Date 01-02-2010
Document Date 01-02-2010
Document Type Invoice
Document No. PI10-1313
Currency Code SGD
Original Amount -221.66
Original Amt. (LCY) -158.77
Adjusted Currency Factor 1.3968
Original Currency Factor 1.3961
Amount -221.66
Amount (LCY) -157.35
Remaining Amount 0
Remaining Amt. (LCY) 1.42
Open No
Entry No. 535663

Detailed Vendor Ledger Entry

Posting Date 01-02-2010 25-02-2010 25-02-2010 25-02-2010 28-02-2010
Entry Type Initial Entry Application Unrealized Gain Unrealized Gain Unrealized Gain
Document Type Invoice Payment Payment
Document No. PI10-1313 PV10-03-0213 PV10-03-0213 Y0910-SGD-R3 Y1002-SGD
Vendor No. OC0010 OC0010 OC0010 OC0010 OC0010
Currency Code SGD SGD SGD SGD SGD
Amount -221.66 221.66 0 0 0
Amount (LCY) -158.77 158.77 -1.42 1.42 1.42
Initial Entry Due Date 40210 40210 40210 40210 40210
Source Code PURCHASES PAYMENTJNL PAYMENTJNL EXCHRATADJ EXCHRATADJ
Unapplied No No No No No
Vendor Ledger Entry No. 535663 535663 535663 535663 535663
Entry No. 53765 54122 54121 59619 54020
Entry No. 53765 54121 59619 54020

I believe it was a known issue and some Kb was released for this issue, pls search partner source. Unfortunately I do not remember that article , I hope somebody on this forum might share.