The Education Minister has apologised for a mistake in the Leaving Cert system that will impact the grades of 6,500 students.
A mistake in one line of code in predictive grades meant 7,200 lower grades were given, while a small number of students were given higher grades.
They will not be downgraded - while texts have been going out this evening to students who may have a grade revised up.
Some of those may have qualify for a course they didn't get as a result.
Education Minister Norma Foley said it's a mistake that should never have happened:
She said: "Once the correct grades have been issued, the CAO will establish how many would have been eligible for a higher preference offer in previous rounds of the CAO process.
