Direct Ship orders - Purchse Requisation ME51N - AFS - Third Party orders

Hello,

There is a user exit EXIT_SAPLJ3AM_003 which exist in 4.6C version of SAP for AFS.

This user exit is for Third Party order processes. This is called within the include LJ3AMFD1 of the main program SAPLJ3AM.

But this User exit is missing in ECC version of SAP for AFS.

Basically when the Dierct ship Sales Order is created, corresponding PR is created for it and using this User exit certain fields in this corresponding Purchase Requisition is filled from Sales Order but this user exit is missing in ECC system.

Could anyone please let me know how SAP handles the Third party Orders in ECC AFS system?

Thanks,