Permission Denied when trying to create from API

Hi there,

I am developing an application using the Developer account of Adobe Sign. Everything seems to work until I try to send a document when I get

Metadata

x-request-id : 28aeb3d9-a147-44b3-a66c-a35e24db5a35

content-type : application/json

status : 403

Body

{

  "code": "PERMISSION_DENIED",

  "message": "The API caller does not have the permission to execute this operation"

}

As near as I can tell, my scopes are fine. The oauth process requests "user_login:self+agreement_read+agreement_send+library_read" and the application has

Is the ability to send documents disabled in the developer account? Our "real" account is a business level that we're getting ready to change to enterprise.

Thanks