Is there any way to call a WCF service from a sharepoint online workflow (Sandboxed Solution)? I have looked up quite a few samples but they all seem to use farm solutions which is obviously not an option in this case.
Secondly, is there a way to start a workflow manually, one that does not require any startup parameters without the need for the user to actually be redirected to a pretty bland page and clicking on "Start"?
Thanks in advance! ;)