Create a variant SKU planning register, check collisions against your existing list, and export CSV without changing your store.
Enable JavaScript to use this browser-local planning tool. The linked guide and workbook also provide a manual method.
Use the result with evidence
The example values are illustrative. Replace them with your own assumptions, keep the exported scenario, and verify the result against your actual operating workflow. No account or email is required.
Open the matching worksheet in the fillable workbook (PDF, page 13). Download and save your own copy; PDF viewers vary in how they preserve form entries.
Read the companion guides
Multichannel Inventory and SKUs: Define What Syncs Before Connecting
Etsy to WooCommerce: Prepare Your Product Catalog Before Importing
Rebuilding Etsy Variations as WooCommerce Variable Products