Case Study: Aon achieves a faster Dynamics 365 migration and 70% testing cost savings with Opkey

Aon Utilizes Opkey to Migrate Their Microsoft Dynamics AX to Microsoft Dynamics 365, Reduces Testing Time by 6 Months and Saves 70% on Testing Costs

Aon, a multinational professional services firm with over 50,000 employees operating in 120 countries, needed to migrate its Finance and Operations modules from Microsoft Dynamics AX to Microsoft Dynamics 365. The migration was complex and initially relied on manual testing and brittle Selenium scripts that broke with each monthly 365 update, causing lengthy seven-month testing cycles, limited IT/business bandwidth, and uncertainty about which workflows to prioritize. Aon engaged Opkey to streamline and secure the testing process for the migration.

Opkey delivered an automated solution including a Migration Impact Analysis report, Self‑Healing test scripts, a Test Accelerator library of 1,800+ Microsoft test cases, a No‑Code interface for business users, and a Microsoft‑specific recorder/playback engine. As a result, Aon cut test cycle time from three months to one, reduced testing costs by 70%, made scripts three times more robust than Selenium, and enabled business users to manage testing with minimal IT support; Aon continues to use Opkey post-migration.

Aon