Intercompany PO to SO process

Summary:

We have 3 LE and BU in the same cloud instance. 1 BU (BU A) is the mainly supplier for the other 2 BUs (BU B,C). So BU B,C 's user will create purchase order under their BU and then transfer to BU A to create sales order. Is there a solution to automatically import the BU B,C's purchase order into BU A to generate the standard sales order?

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24A

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