In touchless buying how the LE defaulted on PO?

Summary:

We have a scenario where 3 LEs are tied to one BU. So we wanted to understand while creating a PR which has a BPA and it will convert into PO directly. Then in this case how the LE will populate on PO? Is there a way me can make sure the correct LE will be populated on PO? ( For both Expense and Inventory destination type PO?

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