Can Active Pivot dimension/measure field names or aliases contain spaces?

A search of the QuartetFS Confluence for 'field name spaces' gives little other than a snippet of a document saying:

The names are shown here with spaces, for clarity; in ActivePivot, the names do not have spaces

"Do not have spaces" doesn't mean "can not have spaces" so I am curious if we can safely use spaces in the field names or create a alias with spaces that points to a field name without spaces.

Yes, the following item can contain spaces:

• Schema field name
• Cube level name / property
• Cube dimension name
• Cube measure name / property

Could you give the URL of the documentation page you quoted? This should be fixed.