Hi Arjun,
Did you activate the transformation using program RSDG_TRFN_ACTIVATE after the implementation of SAP Note 1846983?
According to the SAP Note the affected transformations is from Inbound InfoSource (the one with suffix _I) to Part Providers. Please note that you can have multiple transformations depending on the number of Part Providers.
Alternatively, make a small change and activate the SPO, this should in my opinion also regenerate the affected transformations.
I expect that the SAP Note solves the problem for future cases. However, the current affected SPOs have to be manually corrected, i.e. the affected transformations from Inbound InfoSource to Part Providers should be regenerated to trigger the changed coding to be used.
Good luck and please let me know it it works.
Best regards,
Sander