No. Kickbite only uses read-only access to your shop backend. It reads order, product, and inventory data to power attribution — it never creates, modifies, or deletes anything in your Shopify or Magento system.
For Shopify, this means only "Read" scopes are selected (never "Write" or "All"). For Magento, the integration reads from Analytics, Sales, and Catalog — no write permissions are granted.