At some point in the past month, possibly when a QuickBooks update occurred, we suddenly had a $3K discrepancy on one of our credit card accounts. Looking back through it we found that about 100 transactions that quite obviously belonged in other accounts had been moved to this other account. Not only that but the year has been changed to 2001 on all of these transactions. We didn't start business until 2003.
Although we know that these transaction certainly shouldn't be in this account, we can't figure out what accounts they should be in or even what the correct years are. They seem to be a mishmash of transactions pulled from several different years which is throwing off all our accounting reports.
Any idea what could have caused this and any way to fix it?