Hi, I'm trying to use the REST services to create a vendorbill, though it seems I'm unable to set the items department / class. If I use an item which has the department / class set via the item record, the vendor bill will be created. If I clear the item department / class I receive the following:

{

    "type": "https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.1",     "title": "Bad Request",     "status": 400,     "o:errorDetails": [         {             "detail": "Error while accessing a resource. Please enter value(s) for: department, class.",             "o:errorPath": "item.items[0]",             "o:errorCode": "USER_ERROR"         }     ] }

Looks like its required on the default form

my challenge is that I'm not able to set it via the payload - i'm trying to pass the 'department' and 'class' through the items sublist though it doesn't seem to pick them up.