How to get sales order number in BAdI PPH_MRP_PURREQ_CF

[SAPSupport]

For MTO scenario, how to get sales order number in BAdI PPH_MRP_PURREQ_CF when creating PR via MRP. 

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[SAPSupport · Accepted solution]

Fetch the related data from CDS view : I_PurReqnAcctAssgmtAPI01 based on PR number PURCHASEREQUISITION in the badi.
https://help.sap.com/docs/SAP_S4HANA_CLOUD/c0c54048d35849128be8e872df5bea6d/10560131c67545fe87ebced0...