53,912 words of Microsoft Copilot training, revised into publishable Welsh

The Challenge

Eight Microsoft Copilot training courses, 133 lessons and 53,912 words, had been machine-translated into Welsh. The courses were due to publish and the Welsh had to read as if it had been written by a Welsh trainer, with consistent terms for Copilot features across every lesson.

Our Solution

A full human revision pass by our Welsh linguists, lesson by lesson, against the English source. Product and prompt terminology was decided once and locked in a project glossary so the same Welsh term appears in every course. One project manager held the whole set and delivered it as a single package.

Results

• 53,912 words across 133 lessons revised to a publishable standard
• Consistent Copilot and product terminology across all eight courses
• Delivered in three working days, 11 to 14 May 2026