You may receive the following error when trying to integrate with our XML API:
Return Code - 200.100.102
Description: "invalid Request. XML load missing (XML string must be sent within parameter 'load')"
This error is if you are transmitting the XML data via HTTPS POST and not prepending the XML string in the body of the POST message with "load ="
Here is the line of code from our PHP example to illustrate what you need to send in the POST message:
$data is nothing but the same XML string that you have also shown below in your previous response.