If you create an eight-character or less format name and nest an
existing format that has a format name exceeding eight characters, you
may receive an error similar to the following:

   ERROR: The format AGE has a label that defines another format to be
   loaded (named AGINGEVE), but this format could not be successfully
   loaded (possibly for the same reason).

This failure occurs because formats created in SAS 9 may also be used in
SAS 8, causing truncation of the long format name which is being nested.

To circumvent this problem, create the format with a long format name
when you use a long format name as a label.

The error can be generated in the following example where we create two
formats, 'AGINGEVERYONEDOESIT' and 'AGE' where 'AGE' uses the existing
format name, 'AGINGEVERYONEDOESIT,' as a label.

In a DATA or PROC step, applying the format AGE generates the error.

  proc format lib=work;
    value agingeveryonedoesit low-13='pre-teen'
                              14-15='teen';

    value age 16='considered adult'
              other=[agingeveryonedoesit30.];
  run;

  data _null_;
    x=18;
    put x=age30.;
  run;

  proc print data=sashelp.class;
    format age age.;
  run;

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