ServiceDesk RESTApi ADD_REQUEST INPUT_DATA invalid xml on long Decription node

ServiceDesk RESTApi ADD_REQUEST INPUT_DATA invalid xml on long Decription node

Hi there, I am in the process of finishing an integration in which the source system's ticket description field in throwing an error when I attempt to post via ADD_REQUEST. A sample of the call is attached. As you will notice the <description> field on the on the input_data will through an error:
 
 <operation name=\"ADD_REQUEST\"><result><status>Failed</status><message>Error when performing - ADD_REQUEST - XML document structures must start and end within the same entity.</message></result></operation>
 
Now if try changing the description to something like "This is a test" the call works fine. What I am wondering is if you can offer any suggestions or alternatives on how I can get the description field populated (unfortunately, I cannot truncate the original text as it must be identical as much as possible to originating source).  I did try wrapping the text into a [[CDATA] field but that did not work either.
 
Thanks,
Allen
 
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