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material blocking working only in t-code Mb21 but we need from all ways i.e


we have blocked Material 2611315121 for doing reservations. while doing

reservations thorough t-code MB21 it is working fine(the system blocking

to create reservation) . But while doing any maintenance order for same

materail through t-code IW31 it was accepting i.e reservation creating

for that well as while creating reservation through CJ20n

also the s/m allowing to create Reservation with respect to that



Former Member
Former Member replied

Hi Ganesh,

System just works differently to MM.

It is check on good issue, than on the release.

Goo to transaction OMS4, click on your Material Status (e.g 01) and

verify if the field Plant Maintenance Message is updated.

For example, if you don't want any procurement from PM you must insert E (ERROR)

To show the blocking message, you have to add a 'B' in the field

'PO/network item msg.' and in the field 'Plant maint. message' in

transaction OMS4.

Check also that in MM02> Purchasing tab : Plant-sp.matl status is set accordly.


Nadia Orlandi

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