# Item Names Validation The validation rules for item names are now applied also during imports and solution loading. These rules are:
- The item name mustn't be null or empty; - Only the following characters are allowed in item names:
In the User Interface (UI)
SymbolASCIIDescription
1No symbolASCII(32)Space
2!ASCII(33)Exclamation mark
3$ASCII(36)Dollar
4%ASCII(37)Procenttecken
5'ASCII(39)Single quote
6(ASCII(40)Open parenthesis (or open bracket)
7)ASCII(41)Close parenthesis (or close bracket)
8+ASCII(43)Plus
9,ASCII(44)Comma
10-ASCII(45)Hyphen
11.ASCII(46)Period, dot or full stop
12;ASCII(59)Semicolon
13=ASCII(61)Equals
14@ASCII(64)At symbol
15^ASCII(94)Caret - circumflex
16\_ASCII(95)Underscore
17`ASCII(96)Grave accent
18{ASCII(123)Opening brace
19}ASCII(125)Closing brace
20~ASCII(126)Equivalency sign - tilde
In the SceneComposer Markup Language (SCML)
SymbolASCIIDescription
1\#ASCII(35)Number
2\[ASCII(91)Opening bracket
3\\ASCII(92)Backslash
4\]ASCII(93)Closing bracket
- The item name cannot be "." or ".."; - The item name can not end with "."; - Additionally Backslash (ASCII 92) and Number (ASCII 35) can be part of an item name if that name is generated by SceneComposer.