The exchange rate looks a little large don't you think?

Have a look at the journal entry after you enter the 902.70 under Payment amount and then see if it is the proper CAD equivalent.  I thought rates were more like 1.28 not 105.

Hi Richard,

Thanks for your help! The journal entry is correct if I only click 902.70. The FX rate is correct because it's for Japanese Yen.

The FX rate may be correct for Yen but you are clearly using a USD vendor.  It says so to the right of the Exchange Rate.

Yes, we pay it in USD. We keeps the book in JPY because it's a JP company. Thanks,

Ok, I just assumed it was CAD as the home currency, sorry.  My best guess is that the exchange rates used in the invoices vs. the current USD to Yen conversion have gone crazy.  If you look at the individual invoices in the journal entry, add up the Yen equivalent, I am assuming it is now forcing the balance negative.  You might need to adjust the exchange rate manually to make it function correctly.

Other than that I am not sure what might be wrong.

Actually, we paid other vendors by using the same way to enter the invoice and credit, no issue. Only issue for this vendor.