Engineering Blog

Technical insights on Optimizely CMS, Commerce, and the modern .NET ecosystem.

CMS Administration

Fix Missing Catalogs Tab in Optimizely Commerce

Problem After installing Optimizely Commerce, theĀ CatalogsĀ tab is missing from the CMS Assets Pane, despite: EPiServer.Commerce.UI package being installed User having CommerceAdmins role Commerce ...

2026-01-23T17:38:03+07:00
šŸ› ļøCMS Administration
Development

Fixing an AmbiguousMatchException in Optimizely CMS 12

The Problem You start your Optimizely CMS 12 application and get this error: System.Reflection.AmbiguousMatchException: Ambiguous match found for property 'Category' Your application won't start. ...

2026-01-20T10:15:51+07:00
āš™ļøDevelopment
Web Performance

Critical CSS: The Secret to Lightning-Fast Web Performance

When it comes to modern web performance, speed and stability are everything. Users expect pages to load instantly, and search engines like Google reward fast, stable experiences with higher ranking...

2026-01-06T10:28:09+07:00
⚔Web Performance