Control the Number Range Intervals for Material Master
You can define the Material Master Number Range in transaction MMNR.
Click the button Groups to Maintain the Material Type Grouping.
Below are those material type that have no number range groups.
To assign a group, in the not assigned group, select the Material Type you
want to group.
Then tick the Group you want to assign and click the menu path Edit ->
Assign Element Group.
From the same screen, if you want a new number range intervals, click
Group -> Insert Group.
If you decided to used an external number range, goto transaction OMS2
and tick the field External no. assignment w/o check.
You have two ways of assigning number range :
Internal number assignment
In this case, a number within the number range interval allowed is assigned by
the SAP R/3 System.
External number assignment
Here, the user assigns a number within the number range interval allowed. You
can define the intervals for external number assignment numerically and
You can assign one or more material types to each group.
If you assign just one material type to a group, you can define both an
internal and an external number range interval for the material type.
If you group together more than one material type, you can define an internal
and an external number range interval here too. This allows several material
types to have the same number range intervals.