Twinfold: Customer Merge

Twinfold: Customer Merge is presented as a tool for finding and bulk-merging duplicate customer profiles in Shopify, with a strong emphasis on previewing each merge before it runs. The app is described as scanning the full customer list, grouping likely duplicates based on signals like email variants, shared phone numbers, or matching names and addresses, then letting merchants choose which profile and details to keep before merging multiple groups at once. It also flags profiles Shopify cannot merge and explains why, which suggests a focus on transparency and control for merchants dealing with messy customer data.