How to push the file uploads that failed to be stored in a third party services through Manage Form Attachments?

How to push the file uploads that failed to be stored in a third party services through Manage Form Attachments?

You can use the Re-push option available in the All Entries section of the form to push the failed file uploads into the third party service. 
Navigate to the All Entries section of the form and select Attachment Failed Entries in the filter.
Failed entries

From the list of failed entries displayed, select the entries that you wish to push again and click Repush option to push the failed entries.