eCommerce Replatforming Checklist (w/ Free Template)

Replatforming is a big decision. For an established eCommerce store, there are many factors to consider that you need to get right.

We created this eCommerce replatforming checklist to help your team ensure you don’t miss any crucial steps.

Let’s dive in.

This checklist is the working list. For the methodology behind it — the seven disciplines that decide whether a replatform holds its revenue — see how to replatform without losing revenue.

Last verified: September 6, 2026.

To access the free eCommerce replatforming checklist, here’s a free one you can copy in Google Sheets.

Free eCommerce Replatforming Checklist

Have you redirected/forwarded all URLs to the right place?

The worst thing that can happen during replatforming is that active URLs result in broken web pages or 404s. You prevent this through URL redirects. A 1:1 map, tested with a full crawl before launch, is the standard worth holding to — see URL redirect mapping for a replatform, and the wider SEO preservation playbook.

Have you migrated and double-checked all your product information?

During a replatform, a lot of product information must get moved over and can sometimes get cleaned up. You want to ensure that nothing essential went missing in the process. Connect to a product information management (PIM) system to help alleviate these worries.

Have you updated your inventory?

This is easy to miss if you’re not actively connected to an enterprise resource planning (ERP) or inventory management system (IMS). You want to ensure that you have the correct number of products in stock the day you go live.

And make sure inventory synching between ERP/IMS is in real-time, so there will be no over-sold issue.

Will your customers have to create new accounts?

When you move your customers from one platform to another, new passwords often automatically generates for them. Making sure multiple emails are sent to address this with active customers is very important. If you leverage an Idaas system (Identity as a Service), you might be able to smoothly move over account logins from one platform to the next.

How are you processing orders?

Go through the entire flow right after a customer completes a checkout to the time the customer receives their order at their doorstep. Did the orders make it to the OMS (Order Management System) or ERP? And did it process into the warehouse or 3PL (third-party logistics) provider?

In addition, make sure that fulfillment information is coming back to the eCommerce platform from 3PL. That way, customers can see the tracking details on their order detail page and receive an email notification.

Are all my active and unused discounts migrated?

Ensure that customers can still use active discounts they might have received that haven’t expired. Overlooking this will lead to lots of customer service tickets.

Can customers still see their order history?

Have you migrated all orders from the old platform to the new one? This will be vital to maintain customer LTV calculations and for customers to see their entire history with a brand for loyalty purposes.

In order migration, ensure that any product associated with an old order is linked to products created on a new platform. This ensures that customers can still see the product image and easily re-order.

Are your capturing and sending emails effectively?

Emails are the lifeblood of many brands and can be the most predictable form of marketing spend. Did you remember to maintain all capture forms? Do your emails still have the same rate of deliverability?

Have you confirmed that tracking of all digital marketing channels is intact?

Losing even a single tracking pixel can lead to millions in additional costs or loss in revenue from marketing campaigns. Similar to broken URLs, this is at the top of the list. Verify each pixel against its own platform's event-testing tools at every funnel stage, not just by confirming the tag exists in the page source — a tag can be present and still misconfigured. Marketing tags & scripts covers the full inventory, the rebuild, and the pre-launch sign-off this needs.

Can customers easily and quickly return orders?

Have you connected with an RMA (Return Merchandise Authorization) software so you can quickly look up orders and so shipping labels can be issued for returns? This process needs to be smooth.

Link your RMA software with inventory management software. On a successful order return, this enables you to update the inventory correctly.

Have you integrated your testing tools?

In addition to digital marketing channels, optimization channels like AB testing and personalization must stay intact.

Is money making it to your bank account?

Just seeing money come into your new platform is fine. But you want to ensure those funds end up in your bank account.

Are you taxing customers the right amount?

You don’t want to be under-taxing and find yourself with a very hefty tax bill at the end of the month.

Have you tested for accessibility and compliance?

Even a tiny coverage gap can lead to a lawsuit, and this is vital to have in place so that you experience no downtime on legal matters.

Is your customer service team trained (and has a configured support desk)?

Customer service is your first line of defense. It’s best to train your team on the new platform, which will make a world of difference.

Have you migrated all active and unused gift cards?

Since customers have already paid for this, it’s essential not to overlook this step. Make sure customers can still use their gift cards on the new website without any issues.

Have you configured the right shipping method?

Configure the correct shipping option based on geographic location and ensure options are rightly mapped with 3PL. This ensures that no matter how the customer orders, the 3PL can choose to correct shipping carrier.

Is your product schema and category taxonomy mapped, not just migrated?

A product page can render perfectly while the structured data underneath it is wrong, missing, or duplicated — there's no visual signal. Verify the new platform's default schema output field by field, map the category hierarchy explicitly, and test shopping feeds against Google Merchant Center and Meta Commerce Manager's own diagnostics rather than assuming feed health because the storefront looks right. Product schema and taxonomy mapping covers the full checklist.

Has someone reviewed the experience, not just the features, before launch?

Functional QA answers "does this work as specified." It doesn't answer whether the new checkout introduces friction that wasn't there before, or whether a navigation change buried a category customers relied on. Schedule a dedicated pre-launch UX review early enough that findings can actually be acted on — why UX testing belongs before launch.

Do you have an hour-by-hour cutover runbook with a rollback trigger?

Not a day-by-day plan: the freeze window, the data-sync sequence, named go/no-go checkpoints with one accountable person at each, and a rollback trigger agreed in advance rather than debated at 3am. The zero-downtime cutover runbook covers what belongs in it.

Have you reconciled the migrated data field by field, not by record count?

Matching totals with individual-record discrepancies underneath is the most common false-confidence trap in a migration. Compare counts, then aggregate sums, then a statistically meaningful sample field by field — see data migration parity.

Grab this free one we created to get an actual digital eCommerce replatforming checklist on Google Sheets. To access it, select File > Make a Copy > Rename — and it’s all yours.

What to build next

A checklist tells you what to verify. The two documents that decide whether the project gets funded and scoped correctly in the first place are the replatforming business case template and the replatforming RFP template — in that order.

For a sense of what this checklist looks like executed under real pressure, buybuy BABY's 31-day migration covered all of it — 30,000+ SKUs, 8.3 million customer records, and four stores reopened with POS — inside a single month.