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This problem is most likely to occur if the VALIDVARNAME=ANY system option is in effect.
If your data conforms to SAS Version 7 naming conventions, a possible circumvention for this problem is to specify the VALIDVARNAME=V7 system option, as follows:
Click the Hot Fix tab in this note to access the hot fix for this issue.
A fix for this issue for Base SAS 9.3_M1 is available at: