shopify-admin-duplicate-customer-finder

You can find duplicate customer records in Shopify by executing a read-only GraphQL query that matches email, phone, and name combinations, generating a structured CSV report of grouped duplicates for manual review.

Fragmented order history and incorrect customer LTV in Shopify happen when duplicate customer records are created via data imports or guest-to-account transitions, splitting a single buyer's purchases across multiple profiles and distorting analytics.

You cannot automatically merge duplicate Shopify customers using this tool, as it enforces read-only safety guarantees by only querying data and outputting CSV reports for you to merge manually in Shopify Admin.

To prioritize which duplicate Shopify customers to merge first, review the generated report which flags duplicate groups alongside their order count and total spent, allowing you to target the most impactful profiles for LTV correction.

Yes, this duplicate customer finder works for large Shopify stores by executing GraphQL queries across paginated results, safely processing extensive customer lists to identify duplicates without hitting standard page size limits.