ERR_JOURNAL_ENTRY on QuickBooks: Journal entry error. Root cause: The journal entry failed validation. Common causes include the debit and credit totals not balancing, referencing inactive or invalid account codes, posting to a closed period, or the entry violating the organisation's accounting rules for the specified transaction type. Step 1: Check debits/credits. Verify they balance Step 2: Check accounts. Verify accounts exist Step 3: Check amounts. Verify amounts correct Step 4: Retry entry. Attempt entry again