Mercado Libre

How to sync Shopify with Mercado Libre, step by step

The four ways to connect Shopify with Mercado Libre, what to check before you choose (Full, SKUs, promotions, per-order fees) and a list of steps.

8 min read

In short

Syncing Shopify with Mercado Libre means your stock, prices, orders and shipping labels match on both channels without entering anything twice. There are four ways to do it: by hand, with an app from the Shopify App Store, with a multichannel hub or with a custom build. Before you choose, check how each option handles Full stock, your SKUs and variants, and active promotions, and whether it charges per order.

Selling on Shopify and Mercado Libre at the same time works better when each piece of data lives in one place. This guide explains what gets synced, the four ways to do it and what to check before you choose a tool.

What syncs, and in which direction

Each piece of data has an owner:

  • Stock. Usually Shopify is the source of truth and Mercado Libre mirrors it: wherever you sell, inventory goes down in one place.
  • Prices. You can manage them on Mercado Libre, or calculate them from Shopify with a rule (for example, your Shopify price plus a percentage to cover the commission).
  • Orders. Mercado Libre sales come into Shopify as orders, so you fulfill everything from one place.
  • Shipping labels and tracking. With Mercado Envíos, Mercado Libre's shipping service, Mercado Libre generates the label, and the tracking number should reach the Shopify order. If you ship with your own carrier, your tracking number should reach Mercado Libre.
  • Listings. Your Mercado Libre listings are linked to your Shopify products, usually by SKU or barcode.

The four ways to do it

1. By hand or with spreadsheets

This works with few sales and few products. The problem is the time between updates: if the last unit sells in your store, it stays listed on Mercado Libre until someone changes it.

2. An app from the Shopify App Store

You install it from your Shopify admin. As of November 15, 2026, these apps connect Shopify with Mercado Libre:

AppApp Store ratingPublished priceWhat its listing says
Astroselling4.1 (65 reviews)USD 51.99 a month on its App Store COMBO plan (500 orders)Stock, prices, orders and several marketplaces
Bitmeli5.0 (35 reviews)USD 30 a month or USD 300 a yearImports from Mercado Libre into Shopify and syncs titles, prices, stock and images
MeliSync4.2 (10 reviews)USD 6.99 to USD 25.99 a month, depending on the number of productsImports, links and syncs titles, prices, stock, descriptions and images
MarketfyNo reviewsFreeStock and orders

Shopify has its own marketplace app, Marketplace Connect, but its listing mentions Amazon, Target Plus, Walmart and eBay. It doesn't include Mercado Libre.

3. A multichannel hub

A hub is a separate system, outside Shopify, that brings several channels together. For example, according to their pages as of November 15, 2026:

  • Multivende lists a Starter plan for Mexico at MXN 3,700 a month (up to 500 transactions), plus MXN 5,900 in implementation fees per connection. Its prices are "+ impuestos" (plus taxes).
  • Ventiapp offers 16 channels and invoicing, with a Startup plan from MXN 199 + IVA (Mexico's value-added tax) a month, for 5 channels and 500 sales. Its app on the Shopify App Store shows as unavailable.
  • Yuju lists many Mexican marketplaces and sets its price based on your revenue.
  • Base.com shows integrations with Mercado Libre, Shopify, Amazon, Walmart and Coppel on its site for Mexico.

They make sense if you sell on many channels; for two, they may be more than you need.

4. A custom build

With Mercado Libre's public API, a developer can connect your accounts exactly the way you want. In exchange, someone has to maintain it every time Mercado Libre changes its listings, notifications or stock rules.

What to check before you choose

Full stock

With Full, Mercado Libre's fulfillment service, Mercado Libre stores your merchandise in its warehouses. According to its developer documentation, only you can add stock to Full, from your account, and through the API that stock can only be read. A tool shouldn't try to overwrite it; ask how it shows Full stock in Shopify (the clearest way is a separate location).

SKUs and variants

Listings are almost always linked by SKU or barcode. If two variants share a SKU, or one has none, the tool won't know which is which. Each variant needs a unique SKU, the same on both channels.

Mercado Libre also changed its listing model: under the User Products model, each variant is its own listing, and the same product can sit behind several listings (for example, a Clásica and a Premium listing) that share stock. Ask whether the tool handles this.

Active promotions

Mercado Libre's documentation says that lowering the price below the price of an active deal removes the promotion. If you're going to calculate prices from Shopify, confirm that the tool doesn't touch listings with a promotion in progress.

Mercado Envíos and your own carrier

Check that Mercado Envíos tracking reaches your Shopify order and, if you ship on your own, that your tracking number reaches Mercado Libre. Otherwise, your team ends up copying tracking numbers by hand.

Stock buffer

A buffer (or safety stock) is a quantity you don't list: if you have 5 units and a buffer of 1, you list 4. It helps most with your best sellers and with products you only have a few units of.

Error log and alerts

Every connection fails at some point: a listing missing a required attribute, expired access, a change on Mercado Libre's side. What matters is that you find out: ask to see the log (what failed and why, in plain language).

How it charges: per order or flat price

This is the biggest cost difference. Astroselling, for example, includes 100 orders a month in the plans on its site and charges USD 0.10 per additional order. At 1,000 orders a month, its Starter plan with annual billing comes to USD 112.42 (22.42 + 900 × 0.10). Other apps charge by number of products or a flat price. Run the numbers with a busy month, such as December.

Steps to connect your channels

  1. Clean up your SKUs. One unique SKU per variant, the same in Shopify and on Mercado Libre.
  2. Choose the source of truth for stock. It's usually Shopify.
  3. Separate Full stock from the stock you ship yourself.
  4. Set a buffer for your best sellers.
  5. Set your pricing rule and decide what happens with active promotions.
  6. Connect your accounts through Mercado Libre's app authorization: you approve access from your own account. Never share your password.
  7. Link your listings and review the ones that didn't find a match. Our docs explain how to link listings.
  8. Test with a few products. Change the stock of 3 to 5 products and check that it shows up on both channels.
  9. Check the log every day during the first week.
  10. Before a peak season (Buen Fin and Hot Sale, two big sales events in Mexico, or December), review your buffers and don't make bulk changes on the day itself. We have a peak season checklist.

Frequently asked questions

Does Shopify have its own Mercado Libre integration?

No. Marketplace Connect, Shopify's marketplace app, mentions Amazon, Target Plus, Walmart and eBay in its listing, but not Mercado Libre. For Mercado Libre you need a third-party app, a hub or your own build.

What happens if a listing runs out of stock?

According to Mercado Libre's documentation, when the stock of a listing for a new (not used) product reaches 0, the listing pauses on its own. When it has stock again, it reactivates, unless you paused it yourself.

How often should it sync?

It depends on the tool. Mercado Libre and Shopify send alerts (notifications) when something changes, so a tool can react to each change instead of checking at set intervals. Ask which one it does.

About Toldo

Toldo is a Shopify app we build; it's rolling out in stages with a small group of founding partners. It syncs stock and prices between Mercado Libre and Shopify, brings your orders into Shopify with their shipping label and invoices your sales with CFDI 4.0, Mexico's electronic invoice. It never overwrites Full stock, and it links listings by SKU or barcode (stock rules). It charges a flat monthly price, with no per-sale commission. During the rollout, we turn on each feature in stages. If you sell on Mercado Libre and Shopify, you can apply as a founding partner.

Mercado Libre and Shopify are trademarks of their respective owners. Toldo is an independent app; it isn't affiliated with or endorsed by them.

Sources

Accessed on November 15, 2026, unless another date is given.