Invalid unique name

The unique name must be a string with length 1-256 and not match the SID pattern [A-Z]{2}[a-f0-9]{32}.

• The value supplied by the UniqueName parameter is an empty string.
• The value supplied by the UniqueName parameter exceeds 256 characters.

Confirm that your UniqueName is a string of 1-256 characters not matching the SID pattern.