SMALL VICTORIES

Singulary. Find and Merge Duplicate Customers in Your Shopify Store

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Singulary automatically finds and merges duplicate customers in your Shopify store. Duplicate records distort your data, break your segments, and make your marketing less effective. Singulary detects them using intelligent matching across email, phone, name, address, and VAT numbers — and lets you merge them in a few clicks.

The Problem With Duplicate Customers

Duplicates happen all the time. A customer checks out as a guest, then creates an account. Someone buys in-store via POS and later orders online. A CSV import creates a second profile. Wholesale channels add another. Most store owners don't even realize they have duplicates until the data starts to look wrong.

The real cost is hidden:

• Split order histories — customer lifetime value looks lower than it really is
• Inaccurate segments — wrong marketing goes to the wrong people
• Distorted analytics — bad data leads to bad business decisions
• Wasted marketing spend — duplicate profiles that represent the same person

A customer who spent $2,000 across 12 orders looks like two customers who each spent $1,000 across 6 orders — and neither qualifies for your VIP segment.

How Singulary Works

• Step 1 — Scan: One-click scan of your entire customer database. Intelligent matching catches typos, nicknames, phone format differences, and address variations — not just exact duplicates. Works with stores of any size, up to 50,000+ customers.
• Step 2 — Review: Side-by-side comparison of each duplicate pair. Match score breakdown showing why customers were flagged. Dismiss false positives with one click.
• Step 3 — Merge: Choose which customer's data to keep (name, email, phone, address, notes, tags). Preview the merged result before confirming. Uses Shopify's official Customer Merge API — all orders and data are preserved.

Why Singulary

• Smart matching, not just email. Catches duplicates other tools miss — phone variations, name typos, address differences, VAT numbers.
• Safe merging via Shopify's API. Not a workaround. Uses Shopify's official Customer Merge API. Orders, addresses, and data are preserved.
• Full control. You choose what to keep. Preview before you merge. Nothing happens without your approval.
• Works at scale. Streaming detection handles stores with tens of thousands of customers without slowing down.
• Free to start. Scan and find duplicates for free. 5 merges included at no cost.

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How to Merge Duplicate Customers in Shopify

Shopify added a built-in merge feature in 2024. Here's the manual process:

1. Go to Shopify Admin → Customers
2. Search for a customer name or email
3. Identify if there's a duplicate (requires manual comparison)
4. Select both customer profiles
5. Use Shopify's built-in merge feature
6. Choose which profile to keep as primary
7. Confirm the merge

This works for a handful of duplicates. But it has real limitations:

• You have to know which customers are duplicates — Shopify doesn't tell you
• No way to search by phone, address, or partial matches
• Extremely time-consuming for stores with thousands of customers
• Easy to miss duplicates with typos or different email addresses
• No batch processing — one pair at a time

Singulary automates the hard part — finding the duplicates. You still make the final decision on every merge.

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FAQ:

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