{"id":4867,"date":"2021-06-04T16:01:31","date_gmt":"2021-06-04T16:01:31","guid":{"rendered":"https:\/\/shopthemedetector.com\/blog\/?p=4867"},"modified":"2026-06-15T11:57:27","modified_gmt":"2026-06-15T11:57:27","slug":"how-to-block-blacklist-customers-on-shopify","status":"publish","type":"post","link":"https:\/\/shopthemedetector.com\/blog\/how-to-block-blacklist-customers-on-shopify\/","title":{"rendered":"How to Block\/Blacklist Customers on Shopify"},"content":{"rendered":"<style>\/* show all review-table rows; hide redundant Show More button (all items already listed) *\/\n.showmore_hidden { display: table-row !important; }\n.readmore-container, .readmore { display: none !important; }<\/style>\n<p>Shopify has no native \u201cblock customer\u201d button. To blacklist a customer you combine tagging, Shopify\u2019s fraud analysis, and an app like Blockify or Fraud Filter (or Shopify Flow if you\u2019re on Shopify Plus). This guide walks through eight blocking methods, when to use each, and how to make blocks stick when a fraudster comes back with a fresh email.<\/p>\n<h2>Why You Might Need to Block a Customer on Shopify<\/h2>\n<p>Before jumping into the how-to, it helps to understand what kinds of customers typically get blocked. The most common reasons store owners need to block a customer on Shopify include:<\/p>\n<ul>\n<li><strong>Chargeback fraud:<\/strong> the customer receives the product, then disputes the charge with their bank to get their money back<\/li>\n<li><strong>Serial returns and refund abuse:<\/strong> ordering repeatedly with the intent of returning everything<\/li>\n<li><strong>Stolen credit cards:<\/strong> fraudulent orders placed with compromised payment info<\/li>\n<li><strong>Harassment or abusive behavior:<\/strong> threatening or abusive messages to your support team<\/li>\n<li><strong>Resellers violating your terms:<\/strong> bulk-buying products to resell against your store policies<\/li>\n<\/ul>\n<p>If the situation is borderline, you can <a href=\"https:\/\/shopthemedetector.com\/blog\/how-to-reset-your-customers-passwords-on-shopify\/\">force a customer password reset<\/a> or <a href=\"https:\/\/shopthemedetector.com\/blog\/how-to-disable-a-customers-account-on-shopify\/\">disable the customer account<\/a> before going as far as a full block. If any of these sound familiar, here are your options for how to block customers on Shopify.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-38160 size-large\" src=\"https:\/\/shopthemedetector.com\/blog\/wp-content\/uploads\/2021\/06\/ChatGPT-Image-Apr-30-2025-03_36_03-PM-683x1024.webp\" alt=\"how to block or blacklist customers on shopify, complete guide infographic\" width=\"683\" height=\"1024\" srcset=\"https:\/\/shopthemedetector.com\/blog\/wp-content\/uploads\/2021\/06\/ChatGPT-Image-Apr-30-2025-03_36_03-PM-683x1024.webp 683w, https:\/\/shopthemedetector.com\/blog\/wp-content\/uploads\/2021\/06\/ChatGPT-Image-Apr-30-2025-03_36_03-PM-200x300.webp 200w, https:\/\/shopthemedetector.com\/blog\/wp-content\/uploads\/2021\/06\/ChatGPT-Image-Apr-30-2025-03_36_03-PM-768x1152.webp 768w, https:\/\/shopthemedetector.com\/blog\/wp-content\/uploads\/2021\/06\/ChatGPT-Image-Apr-30-2025-03_36_03-PM.webp 1024w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/p>\n<div class=\"key-takeaways\">\n<div class=\"takeaways-title h2\">Key Takeaways<\/div>\n<div class=\"takeaway-item\">\n<div class=\"takeaway-number\">1<\/div>\n<div class=\"takeaway-text\">Shopify has no native block button, but you can block a customer on Shopify using tags, fraud analysis, and third-party apps.<\/div>\n<\/div>\n<div class=\"takeaway-item\">\n<div class=\"takeaway-number\">2<\/div>\n<div class=\"takeaway-text\">Blockify and Fraud Filter let you auto-cancel orders from blacklisted emails, IPs, or entire countries.<\/div>\n<\/div>\n<div class=\"takeaway-item\">\n<div class=\"takeaway-number\">3<\/div>\n<div class=\"takeaway-text\">Shopify Plus users can automate customer blocking with Shopify Flow workflows.<\/div>\n<\/div>\n<div class=\"takeaway-item\">\n<div class=\"takeaway-number\">4<\/div>\n<div class=\"takeaway-text\">Always tag and document blocked customers so your team spots them on future orders.<\/div>\n<\/div>\n<div class=\"takeaway-item\">\n<div class=\"takeaway-number\">5<\/div>\n<div class=\"takeaway-text\">Combining multiple blocking methods gives you the strongest protection against repeat offenders.<\/div>\n<\/div>\n<\/div>\n<h2>Should You Block, Warn, or Just Cancel? A Quick Decision Guide<\/h2>\n<p>Not every problem customer needs a permanent block. Use this rough rule of thumb:<\/p>\n<ul>\n<li><strong>Cancel the order, no block:<\/strong> single high-risk fraud flag, customer disputes politely, address mismatch with a plausible explanation.<\/li>\n<li><strong>Tag and warn (soft block):<\/strong> two or more returns in a short window, unverified payment, complaints from your support team. Add a tag, hold next order for manual review.<\/li>\n<li><strong>Full block:<\/strong> chargeback filed, abusive behavior, confirmed stolen card, or three or more refund cycles in 90 days.<\/li>\n<li><strong>Country or IP-range block:<\/strong> repeated fraud attempts from the same region or IP block where you don\u2019t have legitimate sales.<\/li>\n<\/ul>\n<p>Blocking too aggressively hurts revenue. Blocking too late hurts your chargeback ratio. The methods below are listed in roughly increasing order of strictness.<\/p>\n<h2>Method 1: Tag, Cancel, and Flag the Customer<\/h2>\n<p>This is the simplest way to block a customer on Shopify, and it works on every plan. It won\u2019t stop them from placing a new order, but it makes sure your team catches them before fulfillment.<\/p>\n<ol>\n<li>Go to <strong>Orders<\/strong> in your Shopify admin and click the problem order<\/li>\n<li>Click the customer\u2019s name to open their profile<\/li>\n<li>In Customer details, add tags like <code>blacklist<\/code>, <code>fraud-risk<\/code>, or <code>blocked<\/code><\/li>\n<li>Add a note explaining the issue (e.g., \u201cchargeback filed on order #1045, IP matches known fraud ring\u201d)<\/li>\n<li>Go back to the order and cancel it. Select \u201cRefund\u201d or \u201cDo not refund\u201d based on the situation<\/li>\n<\/ol>\n<p>Next time this customer places an order, the tag shows up immediately. You can train your team to check customer tags before processing any order. This manual method works best for stores with low order volume where you review each order individually. For broader segmentation, <a href=\"https:\/\/shopthemedetector.com\/blog\/how-to-create-customer-groups-on-shopify\/\">customer groups<\/a> let you route flagged buyers into a dedicated segment for monthly review.<\/p>\n<h2>Method 2: Use Shopify\u2019s Built-In Fraud Analysis<\/h2>\n<p>Every order that comes through your Shopify store gets a fraud analysis score. Shopify checks the billing address, IP location, number of order attempts, and whether the credit card has been flagged before.<\/p>\n<p>To use fraud analysis to block a customer on Shopify:<\/p>\n<ol>\n<li>Open the order in your Shopify admin<\/li>\n<li>Scroll to the <strong>Fraud analysis<\/strong> section on the right side<\/li>\n<li>Look for red or yellow indicators. These highlight risk factors like mismatched billing and shipping addresses or multiple failed payment attempts<\/li>\n<li>If the order is flagged as \u201cHigh risk,\u201d cancel it immediately and tag the customer<\/li>\n<\/ol>\n<p>Shopify\u2019s fraud analysis catches a lot of obviously fraudulent orders, but it\u2019s not perfect. It flags risk, it doesn\u2019t block automatically. That means you still need to review flagged orders manually and decide whether to fulfill or cancel.<\/p>\n<p>For stores processing dozens of orders per day, relying on manual fraud review alone isn\u2019t practical. That\u2019s where apps come in.<\/p>\n<h2>Method 3: Block Customers with Third-Party Apps<\/h2>\n<p>If you want to actually prevent a blacklisted customer from completing checkout, you need a third-party app. See our roundup of the <a href=\"https:\/\/shopthemedetector.com\/blog\/fraud-filter-apps-shopify\/\">best Shopify fraud filter apps<\/a> for a side-by-side comparison. The three most effective for blocking specifically:<\/p>\n<h3>Blockify: Fraud Country Blocker<\/h3>\n<p>Blockify is the most popular blocking app on the Shopify App Store. It lets you:<\/p>\n<ul>\n<li>Block customers by email address, IP address, or IP range<\/li>\n<li>Block entire countries or regions from accessing your store<\/li>\n<li>Auto-redirect blocked visitors to a custom page<\/li>\n<li>Block known VPN and proxy IP addresses<\/li>\n<li>Set up bot protection to stop automated fraud attacks<\/li>\n<\/ul>\n<p>When a blocked customer tries to visit your store, they see a redirect page or access denied message. They can\u2019t add items to cart or reach checkout at all.<\/p>\n<h3>Fraud Filter<\/h3>\n<p>Fraud Filter (by Shopify) is a free app that lets you create custom rules to auto-cancel or flag orders. You can set rules based on:<\/p>\n<ul>\n<li>Email address (block specific emails)<\/li>\n<li>IP address<\/li>\n<li>Billing or shipping address<\/li>\n<li>Zip or postal code<\/li>\n<\/ul>\n<p>When an order matches a rule, Fraud Filter either cancels it automatically or flags it for manual review. This is a solid option if you want to blacklist specific customers by email without paying for a premium app.<\/p>\n<h3>Cozy AntiTheft and Cozy Country Redirect<\/h3>\n<p>Cozy AntiTheft focuses on content protection (right-click disable, image protection) but also offers IP blocking features. Cozy Country Redirect lets you redirect traffic from specific countries, useful if most of your fraud comes from particular regions.<\/p>\n<h2>Method 4: Block by Email Address<\/h2>\n<p>The most common way to block a customer on Shopify is by their email address. Here\u2019s how to set it up depending on your tools:<\/p>\n<ul>\n<li><strong>Using Fraud Filter:<\/strong> Create a new rule, select \u201cEmail\u201d as the filter, enter the email address, and set the action to \u201cCancel order\u201d<\/li>\n<li><strong>Using Blockify:<\/strong> Go to the Blocklist section, add the email address, and choose whether to block checkout or block site access entirely<\/li>\n<li><strong>Manual approach:<\/strong> Tag the customer as \u201cblocked\u201d and set up a Shopify notification or workflow to alert you when that email places an order<\/li>\n<\/ul>\n<p>Keep a running spreadsheet or note of blocked emails. Fraudsters often create new accounts, but they frequently reuse the same email, especially for chargeback schemes where they need to receive the order confirmation.<\/p>\n<h2>Method 5: Block by IP Address<\/h2>\n<p>Blocking by IP works best when you\u2019re dealing with a specific bad actor rather than a ring of fraudsters. To block a customer on Shopify by their IP address:<\/p>\n<ol>\n<li>Find their IP in the Shopify order\u2019s fraud analysis details<\/li>\n<li>In Blockify, go to the IP Blocklist and add the IP address or IP range<\/li>\n<li>If you use Cloudflare (custom domain or headless setup), you can also add IP block rules at the CDN level. This stops them before they even reach Shopify<\/li>\n<\/ol>\n<p>Keep in mind that IP addresses change. If the customer uses a VPN or has a dynamic IP from their internet provider, IP blocking alone won\u2019t stop them. Use it in combination with email blocking for better coverage. For country-level control, <a href=\"https:\/\/shopthemedetector.com\/blog\/shopify-geolocation-apps\/\">Shopify geolocation apps<\/a> give you more granular routing options than IP blocks alone.<\/p>\n<h2>Method 6: Block by Country or Region<\/h2>\n<p>If you only ship domestically or to a handful of countries, blocking traffic from everywhere else reduces fraud dramatically. Most Shopify fraud originates from a small number of high-risk regions.<\/p>\n<p>To block customers by country on Shopify:<\/p>\n<ul>\n<li><strong>Blockify:<\/strong> Add countries to your blocklist. Visitors from those countries get redirected to a \u201cnot available in your region\u201d page.<\/li>\n<li><strong>Shopify Markets:<\/strong> In your Shopify admin, go to Settings, Markets. Remove markets you don\u2019t serve. This won\u2019t block site access but prevents checkout from unsupported countries.<\/li>\n<li><strong>Geolocation apps:<\/strong> Apps like GeoIP Country Redirect can detect visitor location and redirect or block based on country.<\/li>\n<\/ul>\n<p>This is one of the most effective ways to reduce fraudulent orders if your store only serves specific markets. For a broader look at protecting your store, the <a href=\"https:\/\/shopthemedetector.com\/blog\/shopify-safety-and-security\/\">Shopify safety and security guide<\/a> covers payment fraud, account security, and data protection together.<\/p>\n<h2>Method 7: Shopify Flow (Shopify Plus Only)<\/h2>\n<p>If you\u2019re on Shopify Plus, Shopify Flow is the most powerful way to block a customer on Shopify. Flow lets you build automated workflows with triggers, conditions, and actions, no code required.<\/p>\n<p>Example workflow to auto-block a customer:<\/p>\n<ol>\n<li><strong>Trigger:<\/strong> Order created<\/li>\n<li><strong>Condition:<\/strong> Customer email is in your blacklist (stored as a metafield or tag)<\/li>\n<li><strong>Action:<\/strong> Cancel order, send internal notification, tag customer as \u201cauto-blocked\u201d<\/li>\n<\/ol>\n<p>You can also build flows that:<\/p>\n<ul>\n<li>Auto-tag customers after a chargeback<\/li>\n<li>Cancel orders from customers with more than 3 returns in 90 days<\/li>\n<li>Flag orders where billing country doesn\u2019t match shipping country<\/li>\n<\/ul>\n<p>Shopify Flow gives you complete control over blocking logic, but it requires a Shopify Plus subscription.<\/p>\n<h2>Method 8: Disable Guest Checkout<\/h2>\n<p>One tactic that makes it harder for blocked customers to sneak back in is requiring account creation at checkout. When guest checkout is enabled, anyone can order with any email, making it easy for a blacklisted customer to just use a different address.<\/p>\n<p>To disable guest checkout:<\/p>\n<ol>\n<li>Go to <strong>Settings, Checkout<\/strong> in your Shopify admin<\/li>\n<li>Under \u201cCustomer accounts,\u201d select \u201cAccounts are required\u201d<\/li>\n<li>Save changes<\/li>\n<\/ol>\n<p>This creates a barrier. While it won\u2019t stop a determined fraudster (they can create a new account), it adds friction and gives you more data points to track suspicious behavior.<\/p>\n<h2>How to Handle Chargebacks from Blocked Customers<\/h2>\n<p>If a customer files a chargeback before you block them, here\u2019s what to do:<\/p>\n<ul>\n<li><strong>Respond to the chargeback immediately<\/strong> through Shopify Payments or your payment gateway. Provide tracking numbers, delivery confirmation, and any communication records.<\/li>\n<li><strong>Document everything:<\/strong> save screenshots of the order, customer tags, notes, and any emails or messages from the customer.<\/li>\n<li><strong>Tag the customer<\/strong> with \u201cchargeback\u201d and \u201cblocked\u201d so your team knows not to process future orders.<\/li>\n<li><strong>Report the email and IP<\/strong> to your fraud app\u2019s blocklist so future attempts are auto-canceled.<\/li>\n<\/ul>\n<p>Too many chargebacks can put your payment processing at risk. Shopify Payments places stores on \u201chigh-risk\u201d status when the chargeback rate crosses roughly 1% of monthly transactions, and Visa typically starts dispute monitoring at 0.9%. That ratio compounds quickly: a store doing 1,000 orders a month only needs about 10 disputes to trip the threshold. Blocking repeat offenders early is the cheapest insurance against losing your payment processor.<\/p>\n<h2>Preventing Repeat Offenders<\/h2>\n<p>Blocking a customer once doesn\u2019t always solve the problem. Persistent fraudsters create new accounts, use different emails, and switch payment methods. Here\u2019s how to build a stronger defense:<\/p>\n<ul>\n<li><strong>Layer your blocking methods:<\/strong> combine email blocking, IP blocking, and country restrictions<\/li>\n<li><strong>Use device fingerprinting:<\/strong> apps like Blockify track device signatures (browser, screen resolution, fonts, canvas hash) that persist even when a customer changes their email or IP. This is the single most effective signal against fraud rings.<\/li>\n<li><strong>Monitor for patterns:<\/strong> same shipping address with different billing info, same phone number on multiple accounts, or orders placed minutes apart with different emails<\/li>\n<li><strong>Keep your blocklist updated:<\/strong> review and add new entries weekly based on recent orders flagged by fraud analysis<\/li>\n<li><strong>Train your team:<\/strong> make sure everyone processing orders knows how to check customer tags and what to do when they spot a flagged account<\/li>\n<\/ul>\n<p>The goal isn\u2019t to block every suspicious customer perfectly. It\u2019s to create enough friction that fraudsters move on to easier targets. Most will give up after one or two failed attempts if your blocking is consistent.<\/p>\n<h2>Legal and GDPR Considerations<\/h2>\n<p>Blocking a customer is legal in most jurisdictions, but you should follow a few rules to stay clean:<\/p>\n<ul>\n<li><strong>You can refuse service<\/strong> for non-protected reasons (fraud, abuse, repeated returns). You cannot refuse based on protected categories like race, religion, gender, or disability.<\/li>\n<li><strong>GDPR right-to-erasure:<\/strong> if an EU customer asks you to delete their data, you must, but you\u2019re allowed to keep a minimal record (email hash, reason) under \u201clegitimate interest\u201d to enforce the block. Document this in your privacy policy.<\/li>\n<li><strong>Keep evidence:<\/strong> store the order ID, chargeback notice, or abusive message that justified the block. This protects you if a blocked customer files a complaint or sues.<\/li>\n<li><strong>Don\u2019t publish blocklists:<\/strong> sharing customer emails or names publicly can expose you to defamation or privacy claims. Keep blocklists internal.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Shopify has no native \u201cblock customer\u201d button. To blacklist a customer you combine tagging, Shopify\u2019s fraud analysis, and an app like Blockify or Fraud Filter (or Shopify Flow if you\u2019re\u2026<\/p>\n","protected":false},"author":3,"featured_media":48784,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_title":"Block a Customer on Shopify: 8 Methods That Work (2026)","_yoast_wpseo_metadesc":"Shopify has no native block button, so here's how to actually do it. Block customers by email, IP, or country using Fraud Filter, Blockify, or Shopify Flow. Step-by-step for every plan.","_yoast_wpseo_metatitle":"","footnotes":""},"categories":[13],"tags":[],"class_list":{"0":"post-4867","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-shopify-store-set-up"},"acf":{"breadcrumbs":[{"postpage":[47029]}],"conclusion":"<h2>Wrapping Up: How to Block a Customer on Shopify<\/h2>\nWhile Shopify does not have a native \"block customer\" button, you have several ways to stop problem buyers. Tag and track suspicious accounts, use Shopify's built-in fraud analysis to catch risky orders early, and install a third-party app like Blockify or Fraud Filter to auto-cancel orders from blacklisted emails or IPs. For stores on Shopify Plus, Shopify Flow gives you the most control with automated workflows. The key is layering these methods so repeat offenders can't slip through.","repeater":null,"filter":false,"attach_to_post":[1924],"author_bio":false,"custom_author_bio":false,"author_bio_name":"","author_bio_info":"","_meta_excerpt_title":"","meta_excerpt":"","trust_signals":{"expert_reviewed":true,"items_tested":""},"key_statistics":null,"key_takeaways":{"takeaways_items":null},"required_subtopics":null,"context_block":{"context_heading":"","context_excerpt":"","context_content":""},"methodology":{"methodology_heading":"","methodology_content":""},"comparison_table":"","mid_content_cta":{"cta_text":"","cta_button_text":"","cta_link":""}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Block a Customer on Shopify: 8 Methods That Work (2026)<\/title>\n<meta name=\"description\" content=\"Shopify has no native block button, so here&#039;s how to actually do it. Block customers by email, IP, or country using Fraud Filter, Blockify, or Shopify Flow. Step-by-step for every plan.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/shopthemedetector.com\/blog\/how-to-block-blacklist-customers-on-shopify\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Block a Customer on Shopify: 8 Methods That Work (2026)\" \/>\n<meta property=\"og:description\" content=\"Shopify has no native block button, so here&#039;s how to actually do it. Block customers by email, IP, or country using Fraud Filter, Blockify, or Shopify Flow. 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