Can someone help me to understand why there is no CartManager and ComboOrderManager struct returned when I used simple SOAP call like this:

var_dump($this->client->__getFunctions()); (This call made in PhP).

 However, I can create an object type of ComboOrderManager but when I tried to push it to iMIS via SOAP call I am getting error:

"... ComboOrderManager. The deserializer has no knowledge of any type that maps to this name ..."

Thanks