Tagging a Dimension as Unique
In an outline that is enabled for duplicate member names, you can tag particular dimensions to require unique member names. This setting enables you to specify member name uniqueness at a granular level in a duplicate member name outline.
To tag a dimension to require unique member names in a duplicate member name outline:
Open the outline in edit mode.
Right-click the dimension and select Edit member properties.
In the Member Properties dialog box, select the Information tab.
Under the Member Information node, in Duplicate member names allowed in dimension, select false.
Click OK.
Related Information
About Duplicate Member Names