E-Commerce: Shop Data Migration
A platform switch stands or falls on the quality of your data transfer. Products, categories, customers, orders, media — everything must arrive on the new platform completely, consistently, and correctly mapped. We plan and execute data migrations with tested mapping scripts, clean up legacy data from the source system, and validate results against the original before the new platform goes live.
Shop Data Migration challenges
In a platform switch, everything hinges on your data. Tens of thousands of products, customers, and the entire order history are meant to move cleanly to the new system, yet earlier manual exports produced duplicates, missing images, and wrong categories, and there's no off-the-shelf migration tool for a custom source structure.
What matters for Shop Data Migration
A data migration lives and dies by the mapping. A complete field mapping between source and target schema is the precondition for nothing being lost or landing wrong. Fields without a direct counterpart require a deliberate decision, because anything left unresolved here ends up either somewhere or nowhere on the new platform later.
The migration moment is the last easy window for cleanup. Duplicates, missing images and wrong category assignments can still be corrected now without knock-on damage, because the new system has not yet built dependent data. Carry data junk across and you carry it forever, and after go-live the cleanup becomes considerably more involved.
Idempotent scripts keep the go-live calm. Migration scripts that can run multiple times without side effects allow a controlled delta run shortly before the switch, so only the difference created since the last full run is transferred. That drives data loss at the switch toward zero instead of turning it into a nail-biter.
Verification against the original is the step sloppy migrations skip. Spot checks are not enough; counts, totals and relationships have to be checked, meaning whether every order still belongs to the right customer and every product sits in the right category. Only when the results reconcile against the source is the migration truly done.
Data Analysis & Mapping
Every source system has its own database structure. We analyse your existing system, map all relevant data fields to the target schema, and clarify edge cases — product variants, custom attributes, historical order data. The mapping document is the foundation of the migration and makes every decision transparent and traceable.
Automated Migration Scripts
Manual data exports are error-prone and impractical for large catalogues. We develop automated migration scripts that read data from the source system, transform it, and load it consistently into the target system. Scripts are idempotent — they can be run multiple times without creating duplicates.
Data Cleansing
A platform switch is the best opportunity to clean up legacy data from the source system. We identify outdated products, duplicate customer records, and inconsistent category structures, then cleanse systematically. What arrives on the new system is clean and maintainable.
Validation & Sign-Off
After migration, we validate results in a staging environment against the original: product count, order history, customer data, and media files are systematically checked. Only once the acceptance criteria are met do we clear the migration for go-live.
Good to know
Mapping is the foundation
A complete field mapping between source and target schema is a prerequisite for a clean migration. Fields without a direct equivalent must be consciously decided — otherwise they land in the wrong place or disappear entirely on the new platform.
Idempotent scripts enable delta migration
Migration scripts that can be run multiple times without side effects allow a controlled delta run shortly before go-live. Only the data difference since the last full run is transferred — data loss at the switch point approaches zero.
Data cleansing: now or never
After go-live, cleaning legacy data is harder because the new system has already built downstream records. The migration moment is the last easy window to remove outdated products, duplicates, and inconsistent structures.
Move data without loss
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Your shop is built by developers who really understand the code. We pass nothing to subcontractors.
Shopware down to the detail
Architecture, API integration and performance from hundreds of project hours.
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Development, design and marketing come from one team that works without friction at the handoffs.
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We build measurably for conversion, load time and revenue.
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We stay on after launch and keep developing your shop continuously.
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