QB Issue Resolution:

That would be on your last bank rec report. you can view them by clicking to reconcile the next month.  That will populate the unreconciled transactions

Resolution for Issue 'How can I view a list of outstanding checks in Quickbooks? I thought it would be part of the reconciliation report for the bank account. But I don’t see it.' available: Yes (Solved).
Source: Intuit Community forum.

How can I view a list of outstanding checks in Quickbooks? I thought it would be part of the reconciliation report for the bank account. But I don’t see it.: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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