i think the answer provided above may have been based on the QB accounting product line.  For POS, you would locate the PO in the PO list and open it or edit it.  In the upper right hand corner you will see the status is most likely set to open. […]

Resolution for 'backordered items issue: 'How do I close a PO when not all of the items shipped? I do not want to erase the backordered items from the PO, I just want to close it as is.' available: Yes.

The backordered items 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 backordered items issue yourself by looking for a resolution described in the article. If it is a complex backordered items issue or you are unable to solve the issue, you may contact us by clicking here or by using other backordered items support options.

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