Incorrect Bank Account Setup for FX

flastuart

Here is the problem I am having. We have a company who created a Bank Account and did not set the proper currency. Their operating currency is USD but the bank account is SGD. When the revaluation of FX was done, it adjusted the account for SGD when it was already in SGD.
No entries were made for the USD so how can we reverse the SGD entry?

Thanks in advance.