SAS Web Report Studio does not support using any of the following characters in report names, templates, and folders:
\ / : * ? “ < > | @ # ' &
As a best practice, you should also not use any of these characters when naming information maps using SAS® Information Map Studio or the INFOMAPS procedure. If you do, you will encounter errors and unexpected behavior in SAS Web Report Studio.
In some areas of SAS Web Report Studio, you might be able to select an information map with a name that includes unsupported characters. In other areas, the same information map returns an error. For example, you use File ► Open to open an information map with the name Sales<2018>. Later, an error occurs when you attempt to open that same information map from the list of recent files. In release 4.4_M5, the most common error is HTTP Status 500 - Internal Server Error. However, other errors can occur.
In addition, if you do open an information map with a name that includes characters that must be escaped in XML, you will probably not be able to use the Key User Action Log for reporting purposes as described in Report Events in the Key User Action Log. Specifically, these are the reserved characters that must be escaped in well-formed XML: ' " < > &.
For more information about this issue, see SAS Note 62776, "Reporting using the SAS® Web Report Studio Key User Action Log requires well-formed XML markup."