How to award a negotiation to an existing purchase order

Summary:

We have a business requirement to be able to award negotiations to an existing PO when the original PO did not meet the suppliers minimum order requirements.

Content (please ensure you mask any confidential information):

We have a PO that is created from a negotiation award. We need to add additional lines to the purchase order. We cannot add the additional lines from the process requisition page due to the fact that we receive an error to which Oracle support responded:

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This error is expected and there is no workaround.

The current logic will allow requisition lines to be added to existing purchase order only if