What’s new in MergeGuard

MergeGuard has a new website. Here is what you can find on it.

• Each feature has its own page: what it does, what you control, and what it never does. Start at features.
• Why Shopify blocks a merge lists the nine cases from Shopify’s help page.
• Help pages cover what happens when you merge customers and a safe merge checklist.
• Two comparisons: Shopify’s built-in merge and Singulary.
• Plain-language privacy policy, terms and Data Processing Agreement.

The site counts page views and the actions listed in the cookie policy, such as Install free clicks, the price switch and FAQ answers, so we can see which pages help. The policy lists exactly what it records.

Three additions to MergeGuard for Shopify, released in October 2026:

• Contact fixes. MergeGuard finds mistyped emails, such as gmial.com instead of gmail.com, and suggests a correction. It flags throwaway emails and never changes them. A confirmation shows how many emails will change before a fix applies, and you can undo a fix once. A fix doesn’t change the customer’s subscription. Read about contact fixes.
• Audiences. Newsletter cleanup, win-back, VIP and Subscription (subscribers who may cancel) lists count each person once, even when their orders sit on several profiles. Sync a list to Klaviyo when you choose, or export it as a CSV. Read about audiences.
• History with Shopify’s verification. Every change is recorded, with the details kept, Shopify’s verification and a snapshot of each merged customer. A snapshot is a record and doesn’t undo a merge. Read about History.

MergeGuard for Shopify launched on the Shopify App Store.

MergeGuard is a Shopify app that finds duplicate customer profiles and merges them, with your confirmation or through automatic merging you switch on for strong matches or groups that need your judgment, so every order sits on one customer.

Shopify merges are permanent, so every merge starts with seeing why the profiles match, then your decision. See how it works.