I need a solution to the problem of users cancelling document uploads, which have required Content Type fields that are left incomplete. This is a problem because despite the user cancelling the document upload while filling out the fields, the user's document still uploads into the library because the upload occurs before the Content Type form fields are requested. I need to delete or block the uploaded document and send the user an email notifying them that they failed to provide the required Content ?Type information.
I've attempted to circumvent this issue using a workflow, however, the workflow fails to start. I'm assuming this is related to cancellation of the document upload.