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Unique Learner Numbers (ULNs): examination data in Wales

To help us improve the sharing of exam results data, centres are asked to check their students’ Unique Learner Numbers are correct before entering learners for examinations.
10 November 2026

Welsh Government is working with Qualifications Wales, the Learner Records Service, and WJEC to improve the sharing of examination results data. We are prioritising the sharing of unitised results data through the Learner Record Service for the new GCSE qualifications.

Stakeholders have told us that the accurate transfer of learner data relies on verified Unique Learner Numbers (ULNs). We are therefore asking centres to undertake robust checks to ensure that ULNs are correct, before entering learners for examinations.

What are Unique Learner Numbers

The ULN is a 10-digit reference number assigned to individuals aged 13 and above who are involved in education or training in Wales (and the UK). It links to a learner’s Personal Learning Record (PLR), which contains their qualifications and achievements. The ULN is unique and remains with the learner throughout their education and training journey.

More information

Further guidance on using and acquiring Unique Learner Numbers (ULN) can be found on Schools in Wales: how to create a ULN (gov.uk).

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