The user can modify any submitted request as long as the fidelity of the new request is higher than the previous one. Such requests can also be modified and submitted by users who may be additional owners or users who have permissions to manage captions for the media resource.
Additionally if another user submits a request for the same resource with a higher fidelity it will overwrite any previous requests made for that video by any user.
To change a submitted request select the Change option from the interface for the request that is submitted.
The user will be directed to the caption request interface. If the user makes valid upgrades to the request, the request can be successfully submitted.