I think what many people do is to use unicode characters, such as the "RIGHTWARDS ARROW" symbol, which has the Unicode code U+2192. But HOW you use it depends on what you are trying to do. Put it in a title or footnote? Use it as the value of an observation in a data set? I recommend that you perform an internet search for your terms, such as "use unicode characters in SAS reports" or something similar. There have been several papers and articles on this topic. Here is one that came up when I did a search:
Useful Tips for Handling and Creating Special Characters in SAS® (pharmasug.org)
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