That message appears because the transactions selected in QuickBooks don’t yet match the ending balance on your bank statement.
Since your bank statement ended before that $200 check cleared, that transaction isn't part of this month's record. By checking it off, you're telling QuickBooks the bank saw the money leave, but the statement says otherwise, which is why you see that $200 difference.
You can leave that $200 check unchecked for this reconciliation, as it doesn't belong on this statement if it hasn't cleared yet. It will simply remain an outstanding check in your books and can be matched once it officially appears on next month’s statement.
Following this keeps your QuickBooks records synced perfectly with your official bank documents, ensuring your financial reports stay accurate for tax and tracking purposes.
If you have additional questions, feel free to comment below.