DPO Dynamic Product Options

We used this app for over 3 years. Early on, it helped solve real customization needs. However, its core implementation is now outdated. The app creates real Shopify variants (D#) that are hidden in Admin UI but persist via APIs, carts, feeds, and Google Shopping. These variants pollute product data and cannot be reliably cleaned. Support denied responsibility and only suggested workarounds. We are forced to rebuild every affected product to fully remove the legacy data. One star due to unresolvable technical debt and lack of effective support.