http://www-01.ibm.com/support/docview.wss?uid=swg27024713&myns=swgimgmt&mynp=OCSS9RXT&mync=E
Reserved Characters
The following characters are reserved. You cannot use these reserved characters when you name TM1 applications, cubes, views, dimensions, subsets, processes, and chores:
| Character | Description |
| ’ | apostrophe |
| * | asterisk |
| @ | at sign |
| \ | back-slash |
| : | colon |
| , | comma |
| " | double-quote |
| > | greater-than |
| < | less-than |
| | | pipe |
| ? | question-mark |
| ; | semicolon |
| / | slash |