Example,
DATA : iv_var TYPE action. " Char 5
TRANSLATE iv_var TO UPPER CASE.
WRITE iv_var.
Now Goto Programs-->Check-->Extended Program Check

Press Execute
or F8.


To Resolve,This Error we should use Predefined Elementary Data Types (C and String ) instead of Data Element while defining Variable.
DATA : iv_var(5) TYPE c.
TRANSLATE iv_var TO UPPER CASE.
WRITE iv_var.
Now Goto Programs-->Check-->Extended Program Check

Press Execute
.

Finally Error is Resolved .