The most common rejections for IRS Form 8863 relate to skipping over Red Alerts in the program. Two common occurrences seem to be the problem. Either a tuition amount has been entered but no SSN or name have been entered, or the American Opportuinty credit and Hope credit are filed together (only one or the other can be filed).

To fix these rejections, all you will need to do is log back into your return and go through the Alerts. Once you come across the Alert for Form 8863, please make your changes there.