Apple's update to iOS7 included the ability to control permissions for the microphone/audio jack per individual application.  By default all application after the update do not have this permission enabled, so this setting must be turned on for Blackbaud MobilePay. Follow the steps below to adjust this setting:

1. On your mobile device, navigate to Settings.
2. Select Privacy, Microphone.
3. Find Blackbaud MobilePay in your list of applications and turn this option On.

If this is your first time logging into MobilePay after your update to iOS7, answer OK to the following prompt: