Help! MM17 Authorization(M_MATE_STA) problem.

Question

Hi, experts!
I have a problem of Mass change  (T-code:MM17)  authorization.
I want to control our user that only can change data through MM17 and not allow to create new data to prevent accident.
So, I set an authorization obj. M_MATE_STA(Material Master: Maintenance Statuses) as ACTVT:02 (Change)
with STATM:all view(*) into user role,but it doesn`t work during Mass change test. : -(
When I checked SU53, It shows that user doesn`t have authorization of 
M_MATE_STA, ACTVT:01 (Create)   STATM : G (costing view). However, I tested changing Pur.grp through MM17 and it was not creation and Pur.grp field is located at purchaing view.
What`s wrong with M_MATE_STA authorization setting at MM17 ?
I cannot understand why M_MATE_STA  ACTVT:01 (Create) is neccesaary when I want to CHANGE(Not create) data at MM17.
Our system is ECC 6.0 ehp4 Support package : 05 and there is no decent SAP Note to apply. Plz, help~!

Answer 1

Hi, jurgen.
I choosen MARC Table EKGRP(Pur.grp) Field  and material master purchasing view was extended already.
I add MM02 to MM17 belogned role through PFCG and set further auth. obj from MM02 but still cannot change Pur.org
at MM17.
The weired thing is when I set M_MATE_STA ACTIV:01 (Create), then I can change pur.org
Is that SAP bug? Our system is ECC 6.0 Ehp4 SP level : 05 and could not find appropriate note yet.