Retroactive Price Adjustment not generated

Summary:

Retroactive Price Adjustment not generated post PO price update

Content (please ensure you mask any confidential information):

We have followed following process, but I do not see Retroactive Price Adjustment

1. Create a PO X item price 10$
2. Receive and account the receipt
3. before invoicing changes PO price from 10$ to 11$
4. Create an invoice with 11$
5. No Retroactive Price Adjustment adjustment generated

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