Regarding the video issue, I would strongly recommend uploading that to the cloud and just sharing a link to the video with the Care rep. The file attachment in the system is pretty much the same as a file attachment in Quick Base and can often fail if the size is larger, if your data stream has a hiccup, or any of a number of other reasons.
On the User issue, there is an API call you can use to generate those Application Invitations. If you're using the standard API, the call is
API_SendInvitation.
------------------------------
Blake Harrison
bharrison@datablender.io
DataBlender - Quick Base Solution Provider
Atlanta GA
404.800.1702 /
http://datablender.io/------------------------------