"Unlisted app" can not install by using InstallApplication(MDM command).

When we specified a "Unlisted app" by InstallApplication(MDM command), the response state is NeedsRedemption.

This is the request and response.

■Request

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"[]>
<plist version="1.0">
  <dict>
    <key>CommandUUID</key>
    <string>dd3fe1a1-a1a7-4987-8201-447e815bd6f9</string>
    <key>Command</key>
    <dict>
      <key>RequestType</key>
      <string>InstallApplication</string>
      <key>Attributes</key>
      <dict>
        <key>Removable</key>
        <false />
      </dict>
      <key>Identifier</key>
      <string>******</string>
      <key>ChangeManagementState</key>
      <string>Managed</string>
      <key>InstallAsManaged</key>
      <true />
      <key>ManagementFlags</key>
      <integer>4</integer>
    </dict>
  </dict>
</plist>

■Response

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"[]>
<plist version="1.0">
  <dict>
    <key>CommandUUID</key>
    <string>dd3fe1a1-a1a7-4987-8201-447e815bd6f9</string>
    <key>Identifier</key>
    <string>******</string>
    <key>State</key>
    <string>NeedsRedemption</string>
    <key>Status</key>
    <string>Acknowledged</string>
    <key>UDID</key>
    <string>00008110-001E74C814EA401E</string>
  </dict>
</plist>

I think non-VPP apps don't need redemption codes.

Is there a way to install "Unlisted app" without using a redemption code?