The single mailing report shows opens and clicks, but after the tracking data is exported, no data is displayed except for header information. If a single mailing report is showing metrics for opens and clicks within Acoustic Campaign, but exporting tracking data shows no results, be sure to check and see whether anyone that was sent the email is opted-in after the email was sent.

If a database is purged and reimported, the database no longer has all the individual metrics per recipient. The single mailing report metrics are housed in a different table that is not purged when the contact is removed from the database.