ExtDimension<ExtDimension number>
Type: Arbitrary.ExtDimension value.
Note:
If the ExtDimension in the parameter is set lower than the ExtDimension, an error will result.
If the ExtDimension parameter is not assigned at all, then it will be defined by the order of the ExtDimension types for the corresponding account.
If the account has fewer ExtDimension types defined, then the value used will be Null.