Adobe Commerce Developer Expert case studies
Adobe Commerce Developer Expert · Put your knowledge to work in context.
The Adobe Commerce Developer Expert credential is an Adobe certification aimed at experienced back-end developers who build and customize Adobe Commerce (formerly Magento) storefronts and integrations. It is intended for practitioners who already work confidently with PHP, module structure, and the platform's extension points, and who want a vendor-recognized signal of senior-level competence rather than an entry-level badge. The exam blueprint is organized into four domains of equal weight: Adobe Commerce architecture and customization; Commerce development covering PHP, modules, dependency injection, and plugins; database, EAV, and data modeling; and performance, caching, and deployment/configuration. That spread means candidates are tested across the whole delivery lifecycle, not just feature coding. The Adobe Commerce Developer Expert case studies are 5 cases and about 1,832 words.
1Stale Category Page After Catalog Import
A merchant runs a nightly catalog import that updates 40,000 products across 300 categories via the REST API. Category and product pages are served through the full-page cache with a 24-hour TTL, and Varnish sits in front.
409 words, about 2 min2Plugin Ordering Conflict on Price Calculation
A module adds a beforeGetPrice plugin on Magento to apply a loyalty discount. A second, third-party module adds an afterGetPrice plugin on the same class to round to the nearest cent and log the result.
409 words, about 2 min3Slow Product Listing From N+1 EAV Loads
A category page renders 48 configurable products, each with 3 simple children. The listing shows name, price, a custom material attribute, and stock status.
365 words, about 2 min4DI Compilation Breaks a Factory in Production
A custom module defines a virtual type for a logger channel and a factory for a service class. In developer mode everything works.
323 words, about 2 min5Redis Cache Growth After Enabling Page Cache
After enabling the full-page cache backed by Redis, the Redis instance grows from 2 GB to 14 GB within two days and hits its maxmemory limit, causing evictions and intermittent cache misses. The catalog has 300 categories × 12 store views = 3,600 listing pages, plus ~50,000 product pages.
326 words, about 2 min