Your bank feed imports transactions but it doesn't categorize them correctly.
QuickBooks and Xero pull transactions from your bank automatically, but auto-categorization is inconsistent. Vendor names change slightly, categories drift, and transactions end up in "Uncategorized Expenses" or silently posted to the wrong account. Hundreds of miscategorized entries pile up before anyone notices, and by the time your bookkeeper catches it, they're unwinding months of compounding errors.