All featuresThirteen things a customer can fix themselves.Address validationEvery address checked as the order lands.Order editingCustomers fix their own orders before it ships.UpsellsA free gift and Recommended for you on the thank you page.RemindersBring them back while the window is open.Order mergeCombine two paid orders before it ships.

OrderEditing.com Account Editor Triom Order Merger See all comparisons

All integrationsClaude, ChatGPT, Sidekick and what is coming next.SidekickAsk Shopify's assistant what Tacey recorded.ChatGPTAsk ChatGPT about your orders and address checks.ClaudeAsk Claude about your orders and address checks.

All toolsFree, no signup, and they run against public data.Address ValidatorPaste a shipping address. See whether it is deliverable, and what the correction would be.Address TypePO Box, freight forwarder, commercial or residential, and which carriers actually serve it.Agentic ReadinessThe 22 fields an AI shopping agent reads before it will recommend you, scored 0 to 100.App StackPaste any Shopify URL. See every app it runs, across reviews, email, loyalty and 14 more categories.Theme DetectorPaste a storefront. Find out which Shopify theme it runs, and which version.Store ActivityPaste a Shopify store URL. See its catalog size and how many products it added in the last 30, 90 and 365 days.Product LookupPaste a product name or URL. See who else sells it across Shopify, and at what price.

Pricing BlogResources

Help centerGuides for setting up and running Tacey.ChangelogWhat shipped, newest first.MCPConnect an assistant to your Tacey data.

Install on Shopify

News

11 articles about News from the Tacey Blog.

TOPICAll notes279 Shopify Operations71 Sales & Conversion46 Marketing & Growth42 Apps & Tools40 Customer Experience35 News & Updates45

ORDERNewest first Oldest first Shortest read

News11 notes

Tacey blog cover: the headline "Hydrogen 2026-10 is Live: What 'Headless' Means for Merchants" in white on a dark background

News & UpdatesHydrogen 2026-10 is Live: What 'Headless' Means for MerchantsThe Shopify Hydrogen 2026-10 release is live. This guide explains what headless commerce is, the costs and benefits versus a theme, and who it is actually for.5 November 202612 min read

Tacey blog cover: the headline "Shopify's 'Unexpected Redirect' Protection: What Merchants Need to Know" in white on a dark background

News & UpdatesShopify's 'Unexpected Redirect' Protection: What Merchants Need to KnowShopify has a new security feature that warns customers before redirecting them to an external website.4 November 202612 min read

Tacey blog cover: the headline "Shopify Protect: Fraud Blocking and Chargeback Help" in white on a dark background

News & UpdatesShopify Protect: Fraud Blocking and Chargeback HelpAs part of its Fall 2026 Editions, Shopify has expanded Shopify Protect to unify its fraud prevention and chargeback management tools.1 November 202612 min read

Tacey blog cover: the headline "Shopify's New Buyer-Requested Edit API: A Merchant's Guide" in white on a dark background

News & UpdatesShopify's New Buyer-Requested Edit API: A Merchant's GuideShopify has released a new API framework for buyer-requested order edits, creating a more secure and standardized way for apps to manage post-purchase changes.24 October 202612 min read

Tacey blog cover: the headline "Shopify Checkout Extensibility: What Non-Plus Merchants Must Fix After August 2026" in white on a dark background

News & UpdatesShopify Checkout Extensibility: What Non-Plus Merchants Must Fix After August 2026The August 2026 Shopify Checkout Extensibility deadline has passed; here is what non-Plus merchants must do to fix broken tracking pixels and upsell apps.23 October 202612 min read

Tacey blog cover: the headline "A Merchant's Guide to Shopify's New 'Buy Shipping Labels with Flow' Action" in white on a dark background

News & UpdatesA Merchant's Guide to Shopify's New 'Buy Shipping Labels with Flow' ActionShopify's new Flow action lets merchants automate shipping label purchases, but this power requires careful setup to prevent costly errors.22 October 202612 min read

Tacey blog cover: the headline "Heads Up: Shopify Will Start Taxing Return Shipping Fees in the US (Oct 2026)" in white on a dark background

News & UpdatesHeads Up: Shopify Will Start Taxing Return Shipping Fees in the US (Oct 2026)Starting October 23, 2026, Shopify will automatically calculate sales tax on return shipping fees for US merchants using Shopify Tax, treating them like outbound shipping.9 October 202612 min read

Tacey blog cover: the headline "The Merchant's Guide to Shopify's New SubscriptionContractCalculation API" in white on a dark background

News & UpdatesThe Merchant's Guide to Shopify's New SubscriptionContractCalculation APIShopify's new SubscriptionContractCalculation API changes how subscription edits work, using the main checkout engine for more reliable calculations.8 October 202612 min read

Tacey blog cover: the headline "Shop.com: What Shopify's New Domain Means for Merchants and the Shop App" in white on a dark background

News & UpdatesShop.com: What Shopify's New Domain Means for Merchants and the Shop AppShopify has acquired Shop.com, shifting its consumer app's web presence from shop.app and signaling a major strategic focus on its consumer-facing marketplace.6 October 202611 min read

Tacey blog cover: the headline "Is Your Shopify Checkout Really Open to AI Agents? A WebMCP Check" in white on a dark background

News & UpdatesIs Your Shopify Checkout Really Open to AI Agents? A WebMCP CheckAgentic commerce is bringing new orders to Shopify, but also new errors. Learn how Shopify's WebMCP and UCP protocols open your store to AI agents and what you need to check to be ready.4 October 202612 min read

Tacey blog cover: the headline "Shopify's New Multiple Barcodes Feature: A Merchant's Guide" in white on a dark background

News & UpdatesShopify's New Multiple Barcodes Feature: A Merchant's GuideShopify's 2026 update allows merchants to add up to 20 barcodes to a single product variant, solving long-standing inventory and point-of-sale scanning issues.17 September 202615 min read

Tacey powers Shopify store owners, letting their customers fix their own orders on the Shopify thank you page. Address checks, edits, upsells, reminders and order merges, before anything ships.

Install on Shopify

ProductAll features Address validation Order editing Upsells Post-purchase offer Pre-Shipment Reminder Order merge Free tools

CompareOrderEditing.com Account Editor Triom Order Merger See all comparisons

IntegrationsAll integrations Sidekick ChatGPT Claude

CompanyAbout Pricing Contact Blog Partners

ResourcesHelp centre Changelog MCP

LegalPrivacy Policy Terms of Service DPA GDPR Subprocessors Trust Centre Cookie Policy Request your data

Every edit, offer and address check happens on the page Shopify already shows your customer. Nothing to install on your theme.

tacey.

Tacey is a Shopify app for order editing, address validation, a free gift and recommended products on the thank you and order status pages, and merging duplicate orders. Customers correct an address, swap a size, change a quantity, add a product, or cancel from the order page Shopify already sent them, inside the window you set. Merchants can combine two paid orders into one before it ships, with no second charge and no refund for its items. Every address is checked the moment the order lands, and every edit is written to a record with what it cost and who asked for it. Available on the Shopify App Store.

© 2026 ONDUTYOPS LLC. All rights reserved.Tacey is a product of ONDUTYOPS LLC, a Delaware limited liability company. Coastal Highway, Lewes, Delaware 19958, United States.hello@taceysupport.appShopify is a trademark of Shopify Inc. Tacey is an independent application listed on the Shopify App Store and is not affiliated with, endorsed by, or sponsored by Shopify Inc. Google and Google Maps Platform are trademarks of Google LLC. Cloudflare is a trademark of Cloudflare, Inc. All other trademarks are the property of their respective owners.