Kalenderwinkel ran two separate stores and wanted to professionalise that setup without letting go of the existing structure. The brief: bring data from two sources together, support seven languages and deliver two cleanly set-up Shopify environments — while the team takes care of design and back-office configuration themselves.
The migration approach
Syncer ran a complete data migration in which more than a million entities were carefully migrated. That includes products and variants, collections, customers, orders and content. Mapping, normalisation and quality checks ensured data from both shops slotted seamlessly into the Shopify data structure of the two target environments.
Seven languages without noise
The multilingual catalogue was set up across seven languages, with clear locale structures and consistent slugs. This keeps navigation and findability logical per language, and gives customers in every country the same clear experience tuned to their language.
Collaboration on their own terms
Kalenderwinkel took the lead on visual design and the Shopify back office themselves. Syncer delivered the data layer and technical orchestration; the client team used that base to configure theme, content and settings exactly to their liking. The result was an efficient split: Syncer for the migration core, Kalenderwinkel for brand and operations.
The result
Two Shopify stores now run on cleaner data, with seven languages consistently implemented and a frontend refined by the in-house team. Management is clearer, expanding per language or market is easier and the customer experience is uniform across both sites.
