Please be advised that Highmark is planning system maintenance to start at 5:00 PM EST on Friday, October 12, 2012. It is estimated the maintenance will be completed by 10:00 AM EST on Sunday, October 14, 2012. During this time Highmark will not be able to process real-time transactions. Any batch transaction sent in during this downtime will be held by Highmark until the systems are back up at approximately 10:00 AM EST on Sunday, October 14, 2012. At that time the transmissions will be processed. As a result you may experience delays in receiving your reports.