I have some question regarding the need to added non standard field in FMDERIVE, i need to include PR Type and PR iTem Category to be able to appears in FMDERIVE. Can you explain to me step to step on how to include those fields in FMDERIVE?
I recommend searching for this. Vanessa has a good reply here: https://answers.sap.com/questions/9108677/add-new-source-field-into-fmderive-derivation-stra.html
We did an enhancement, as Vanessa describes