After e-filing test returns and processing acknowledgments, when I review old acks, the test acks are missing from the list.
Test acknowledgments are identified as Drake Transmission Acks and listed with IRS acks when you review old acknowledgments.
At EF > Process Acks, when there are no new acks to process, you're offered the option to review old acknowledgments. Selecting Yes opens the Review Old Acknowledgements dialog box, which defaults to display IRS Acks received within the last day (to extend the date range, use the Limit Days Shown drop list). In that display, test acknowledgments are listed as Drake Transmission Acks.
All test return acknowledgments are from Drake, not the IRS.