Support did answer me. Here is response 1) can the 1MB limit not be increased like you can with XML size? The limit can be increased, but this is highly discouraged. This limit was put in place for performance reasons and increasing the limit could cause major issues. 2) If your SOAP call returns 2MB XML, that gets stored in a variable called SoapResponseSomething and presumable not truncated? The size of the XML returned and stored in PAM is controlled in the Web Service Module within the GUI interface. Again, this defaults to 1MB and increasing it above this can cause performance issues. 3) I understand that valueMap can contain x number of variables each 1MB. What about an array? is that 1MB per element in array or for all elements? Yes, the array elements each have the 1MB limit.