There are some special characters that cannot be included in your XML document, these include: ampersands, greater than, less than, quotes, apostrophes and line breaks. All of these characters need to be XML encoded. Please see the following examples:
To include an ampersand (&) in your job data, you should send:
&
To include a greater than sign (>) in your job data, you should send:
>
To include a less than sign (<) in your job data, you should send:
<
To include a quote (") in your job data, you should send:
"
To include an apostrophe (') in your job data, you should send:
'
To include a line break in your custom field data, you should send:
For example if you wish to create a blank custom field called "Time & Materials" you would need to send the following XML via the API:
<custom_field>
<name>Time & Materials</name>
<value></value>
</custom_field>