Is it possible to know for sure whether someone has downloaded a file? The transaction log mentions the number of attempts, but not whether the file was actually transferred.
It is not technically possible to determine when a download has completed successfully; we can only count how many times the buyer has Attempted to start the download on their link, with no way of knowing what happened after they clicked the link. If you are concerned about this because a buyer is disputing a payment, you may find this related discussion of interest:http://www.e-junkie.com/bb/topic/4134
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