QB Issue Resolution:

Are you sure it is marked as Bill Received, top right? If someone used Item Receipt, that isn’t a Bill, yet; it is in a Preliminary status. That’s why Item Receipt exists, to provide for that separation.

Open the Bill. Also, use Ctl H (History), to see if something is linked to it, already. Your file might be set to Use Credits Automatically, in Preferences. You control over 360 settings, there.

Please see my attachments.

AP_Difference.JPG
Item_Receipt_Warning.JPG

Resolution for Issue 'Why is an unpaid bill not included on the upaid bills report?' available: Yes (Solved).
Source: Intuit Community forum.

Why is an unpaid bill not included on the upaid bills report?: 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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