Error Scheduling Document with Prompts using REST API - An internal error occurred while calling 'answerPromptsEx' API. (Error: ERR_WIS_30270)

I just started using REST API for executing a web intelligence document with prompts and recieved the following error:

An internal error occurred while calling 'answerPromptsEx' API. (Error: ERR_WIS_30270)

URL:

http://wdwbidev01vm:6405/biprws/raylight/v1/documents/34978/schedules

Headers:

Accept:application/xml

X-SAP-LogonToken:"WDWBIDEV01VM.twia.org:6400@{3&2=44766,U3&2v=WDWBIDEV01VM.twia.org:6400,UP&66=60,U3&68=secEnterprise:pstone,UP&S9=8606,U3&qe=100,U3&vz=h1mTvl_ZAyY8viCiEU6VQ3Mxu9NQy8kPqmMdTLC.Bm8,UP}"

Content-Type:application/xml

Resquest:

<schedule>

<name>twoprompts</name>

<format type="webi"/>

<destination><inbox/></destination>

<parameters>

<parameter dpId="DP2" type="prompt" optional="false">

<id>0</id>

<technicalName>pmTWIA</technicalName>

<name>TWIA</name>

<answer type="Text" constrained="false">

<values>

<value>16332</value>

</values>

</answer>

</parameter>

<parameter dpId="DP2" type="prompt" optional="false">

<id>1</id>

<technicalName>psStart</technicalName>

<name>Start</name>

<answer type="Date" constrained="false">

<info cardinality="Single">

<values>

<value>10/1/2013</value>

</values>

</info>

</answer>

</parameter>

<parameter dpId="DP2" type="prompt" optional="false">

<id>2</id>

<technicalName>psEnd</technicalName>

<name>End</name>

<answer type="Date" constrained="false">

<info cardinality="Single">

<values>

<value>1/31/2014</value>

</values>

</info>

</answer>

</parameter>

</parameters>

</schedule>

Response:

<success>

< message > The resource of type 'Schedule' with identifier '44778' has been successfully created.

</ message >

<id>

44778

</ id >

</success>

Error:

Looking at the scheduled instance I see the following error:

An internal error occurred while calling 'answerPromptsEx' API. (Error: ERR_WIS_30270)

Heres the version of SAP i am running:

SAP BusinessObjects Enterprise XI 4.0

I can manually run this through the WEB UI front end with no problems.

When i query to see what the doc params are i get this:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

<parameters>

< parameter dpId = "DP2" type = "prompt" optional = "false" > < id > 0

</ id >

<technicalName>

pmTWIA

</ technicalName >

<name>

TWIA

</ name >

<answer type="Text" constrained="false">

< info cardinality = "Multiple" />

</ answer > </ parameter >

<parameter dpId="DP2" type="prompt" optional="false">

< id > 1

</ id >

<technicalName>

psStart

</ technicalName >

<name>

Start

</ name >

<answer type="Date" constrained="false">

< info cardinality = "Single" />

</ answer > </ parameter >

<parameter dpId="DP2" type="prompt" optional="false">

< id > 2

</ id >

<technicalName>

psEnd

</ technicalName >

<name>

End

</ name >

<answer type="Date" constrained="false">

< info cardinality = "Single" />

</ answer > </ parameter > </ parameters >