(not sure where my post went with the solution, so I will re post here)
We figured out the solution. in essence, we had to uncheck the URL expects batch inserts box and choose use templated request body for the Send new field valuesfield.
once we did that, we then create the custom request with the following:
{
"messages": [
{
"to": "{{to}}",
"from": "{{from}}",
"body": "{{body}}"
}
]
}
You can see the entire XML here:
<skuidpage unsavedchangeswarning="yes" personalizationmode="server" showsidebar="false" useviewportmeta="true" showheader="false">
<models>
<model id="Send" query="false" createrowifnonefound="false" datasource="ClickSend" processonclient="true" type="readwrite" label="Message" labelplural="Messages">
<fields>
<field id="to" displaytype="TEXT" label="To" required="true" uionly="false"/>
<field id="from" displaytype="TEXT" label="From" required="true" uionly="false"/>
<field id="body" displaytype="TEXTAREA" label="Message" ogdisplaytype="TEXT" required="true" uionly="false"/>
<field id="custom_string" displaytype="TEXT" label="Patient Case ID" uionly="false"/>
</fields>
<conditions/>
<actions/>
<methods>
<method type="insert" verb="POST" successif="responsefieldequals" sendchanges="usetemplaterequest" endpoint="/sms/send" batch="false" successfield="response_code" contenttype="application/json" payloadsnippet="cs_snip" insertresponse="recordinbody" customrequesttemplate="{ "messages": [ { "to": "{{to}}", "from": "{{from}}", "body": "{{body}}" } ] }"/>
</methods>
</model>
</models>
<components>
<buttonset model="Send" uniqueid="sk-3PATUJ-218">
<buttons>
<button type="multi" label="New Message" uniqueid="sk-3PATl0-221" icon="sk-icon-add">
<actions>
<action type="createRow" model="Send" appendorprepend="prepend" defaultmodefornewitems="edit" affectedrows="context"/>
</actions>
</button>
</buttons>
</buttonset>
<basicfieldeditor showheader="true" showsavecancel="true" showerrorsinline="true" model="Send" uniqueid="sk-3PALtc-174" mode="edit">
<columns>
<column width="100%">
<sections>
<section title="Section A" collapsible="no">
<fields>
<field uniqueid="sk-3PAOCB-189" id="to"/>
<field uniqueid="sk-3PARw5-200" id="from" valuehalign="" type=""/>
<field uniqueid="sk-3PASIg-209" id="body" valuehalign="" type=""/>
<field uniqueid="sk-3PIMR1-537" id="custom_string" valuehalign="" type="">
<label>Case ID</label>
</field>
</fields>
</section>
</sections>
</column>
</columns>
</basicfieldeditor>
</components>
<resources>
<labels/>
<javascript>
</javascript>
<css/>
<actionsequences/>
</resources>
<styles>
<styleitem type="background" bgtype="none"/>
</styles>
</skuidpage>
