Invalid Characters in Section Access Data

[#1]

Hi and thanks for reading.

I have spent the day learning Section Access and applying it to some of my Apps.  After some frustration I discovered that the reason one of my reductions wasn't working was because the data contained the '/' character.

Using REPLACE(UPPER(MyField.'/',' ') on both the source data and my section access table load allowed me to resolve this.

My first question is, is this mentioned anywhere in the documentation, and my second question is are there any other characters which will cause section access to fail?