A new system which allows students to learn of their exam results by text has been hailed a success.
The SQA said the new text system had worked well.
A total of 58 teenagers received notification of their results via mobile phones on Monday - a day before the results were officially released.
The Scottish Qualifications Authority (SQA) said the pilot had "worked well" adding that it could now be rolled out to schools across Scotland.
The pupils involved were also due to receive their results by post.
The SQA described the trial as the first step in what could be a new results delivery method for the future.
Pupils at Anderson High School on Shetland, Kirkwall Grammar School on Orkney, The Nicolson Institute on Lewis and Skye's Portree High School volunteered to take part in the trial.
Mike Haggerty, SQA spokesman, said: "We sent out 58 sets of results and we know that 56 of these were sent and received, although the individuals could have turned their phones off.
"We are happy that technically the pilot has worked well and we have no reason to doubt the accuracy of the messages that we have sent, because we checked them many times before they went out.
"But of course the proof of the pudding will be when the pupils get their certificates.
"We remain confident that the information that has been texted is the same as that in the certificates."
Natasha Shek, 16, who attends Kirkwall Grammar School was one of the pupils who has recently sat her Highers and took part in the trial.
She received a text message shortly after 1300 BST, telling her she had received an A grade in English, an A in Health Care, a B in French and a B in Biology.
"I am not really sure if the text messaging is any more useful than getting the results through the post tomorrow although it has been good to find out how you have done that little bit earlier than most people," she said.
About 150,000 pupils were receiving their results on Tuesday.