Getting Multiple Records from Web API

I am integrating an employee system with another system that tracks our employee background checks.  The Web API returns several records for an employee.

body Dictionary
    LASTNAME "Smith"(Text)
    USER_ID 1234567(Number (Integer))
    FIRSTNAME "Bob"(Text)
BGCDATA List of Dictionary - 3 items
 Dictionary
  SERVICENAME "Fingerprinting"(Text)
  TYPENAME "Background Check Option for School Teachers"(Text)
  BGCDATE "July, 25 2018 00:00:00"(Text)
  BGCSTATUS "Complete"(Text)
  BGCCOMMENTS ""(Text)
 Dictionary
  SERVICENAME "MYB"(Text)
  TYPENAME "EMPLOYEE"(Text)
  BGCDATE "October, 24 2023 08:00:26"(Text)
  BGCSTATUS "Complete"(Text)
  BGCCOMMENTS null(Null)
 Dictionary
  SERVICENAME "MYB"(Text)
  TYPENAME "EMPLOYEE"(Text)
  BGCDATE "April, 19 2017 09:22:39"(Text)
  BGCSTATUS "Complete"(Text)
  BGCCOMMENTS null(Null)

Here is the XSD for the CDT that I am storing the data into.

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="urn:com:appian:types:PMSO" targetNamespace="urn:com:appian:types:PMSO">
  <xsd:complexType name="PMSO_BGCData">
    <xsd:annotation>
      <xsd:documentation><![CDATA[Background Check Data]]></xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="USER_ID" nillable="true" type="xsd:int" />
      <xsd:element name="SERVICENAME" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(length=255)</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="TYPENAME" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(length=255)</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="BGCDATE" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(length=255)</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="BGCSTATUS" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(length=255)</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="BGCCOMMENTS" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(length=255)</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
    </xsd:sequence>
  </xsd:complexType>
</xsd:schema>

I have an expression rule that converts the resultant JSON to the CDT.

a!localVariables(
  if (
    a!isNotNullOrEmpty(ri!result),
    'type!{urn:com:appian:types:PMSO}PMSO_BGCData'(
      USER_ID: ri!result.USER_ID,
      /*FIRSTNAME: ri!result.FIRSTNAME,*/
      /*LASTNAME: ri!result.LASTNAME,*/
      SERVICENAME: ri!result.SERVICENAME,
      TYPENAME: ri!result.TYPENAME,
      BGCDATE: ri!result.BGCDATE,
      BGCSTATUS: ri!result.BGCSTATUS,
      BGCCOMMENTS: ri!result.COMMENTS
     
    ),
    null
  )
)

The problem is that I do not get multiple records, just one.  If the resultant is multiple records, I get this from the Expression Rule.

MSO_BGCData
    USER_ID 1234567(Number (Integer))
    SERVICENAME ""(Text)
    TYPENAME ""(Text)
    BGCDATE ""(Text)
    BGCSTATUS ""(Text)
    BGCCOMMENTS ""(Text)

If the resultant API call is a single record, I get this from the Expression Rule.

PMSO_BGCData
    USER_ID 1234567(Number (Integer))
    SERVICENAME "Fingerprinting"(Text)
    TYPENAME "Background Check Option for School Teachers"(Text)
    BGCDATE "July, 25 2018 00:00:00"(Text)
    BGCSTATUS "Complete"(Text)
    BGCCOMMENTS ""(Text)

I am trying to use the USER_ID for each of the nested records.  I am not sure that the result is well formed or I am not doing something correctly.