ORA-36643: (XSDUNION21) Concat dimension workspace object cannot be changed to NOT UNIQUE because it contains custom member values.
Cause: Only UNIQUE concat dimensions can have custom member values or base dimensions which contain custom member values.
Action: Remove all custom member values from the concat and all of its bases, and retry.
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ORA-36643(XSDUNION21) Concat dimension workspace object cannot be changed to NOT UNIQUE because it contains custom member values.