---
title: "JobInfo Substitution Does not Support Special Characters"
slug: "jobinfo-substitution-does-not-support-special-characters"
description: "Due to rules set in C++, JobInfo names cannot have special characters in them for use with JobInfo Substitution (JobInfo name inside hashtags to return value). "
tags: ["Lasernet Developer", "JobInfo substitution", "Special characters"]
updated: 2026-03-19T13:52:02Z
published: 2026-03-19T13:52:02Z
canonical: "kb.lasernetgroup.com/jobinfo-substitution-does-not-support-special-characters"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.lasernetgroup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# JobInfo Substitution Does not Support Special Characters

Due to rules set in C++, **JobInfo** names cannot have special characters in them for use with **JobInfo Substitution** (**JobInfo** name inside hashtags to return value).

#### Examples

Allowed:

- Username
- _Username
- _1Username
- User_name
- U1sername

Not allowed:

- 1username
- User name
- User-name
- User.name
- user/name
- User:name
- User,name
- User%name
- User&name
- User@name

...and many more.

Here are some of the basic rules:

- Variable names in C++ can range from 1 to 255 characters.
- All variable names must begin with a letter of the alphabet or an underscore(_).
- After the first initial letter, variable names can also contain letters and numbers.
- No spaces or special characters are allowed.

Further information can be found here:

[https://www.tutorialspoint.com/What-are-the-rules-to-declare-variables-in-Cplusplus](https://www.tutorialspoint.com/What-are-the-rules-to-declare-variables-in-Cplusplus)

#### More Information

For more information about JobInfos and JobInfo substitution, see [JobInfos](/v1/docs/jobinfos-1) .