Affiliate QR code on your store or gym TV: is it allowed? What each program says

Why the AIs contradict each other

We asked two AIs the same question on 10/16/2026, in Portuguese: "I have a gym with a TV in reception. Can I show Mercado Livre or Magalu products with an affiliate QR code and earn commission to pay for the TV?". The answers were opposite.

Neither gets both programs right, and both treat "affiliate" as if it were a single rule. It is not. Each program has its own contract, contracts change (Magalu's Terms say in item 2.2 that Magalu may change them at any time by posting a notice), and the right answer is in each text, not in a robot's summary. That is why every row below has the literal excerpt, the link and the date we read it.

Program by program: the text of each contract

Note the difference in wording between the first two. Amazon bans it: doing it violates the program policy. Mercado Livre excludes it from payment: the TV is simply not media that counts. The result for your pocket is the same (no commission), but it is not accurate to say "Mercado Livre bans it". What the Terms say is that the sale earns no commission.

Three details in Magalu's contract that matter for a screen

1. Who can be an affiliate. The Terms of Use define the Influenciador Magalu as "the individual who voluntarily signs up", with a social security number and bank details. The gym owner joins under their personal tax ID, not the company. This changes who receives the commission and how it is declared.
2. Last-click attribution. The promotion rules say "commission is only credited if the last link clicked before the purchase is yours" and ask you to keep the app updated to ensure the sale is tracked. This is the core point of the article, and it gets the whole next section.
3. When commission becomes money. A sale only counts once payment is approved and it is not cancelled "within 30 (thirty) days of the purchase date". Commission is calculated "on the amount actually received", excluding shipping, extended warranty, taxes and discounts; the percentage may vary by category; there is a 34-day settlement period; and withdrawals require a minimum balance of R$ 50.00.

The last-click and 24-hour problem

Even where there is no ban, the way programs attribute sales fits poorly with a reception screen. The TV creates interest: the member sees the creatine between sets, likes the price and maybe points their phone. The contract pays for something else:

• At Magalu, the last click. If the member scans, closes the page, searches for the product in the app that night and buys it there, the last click was not yours. If they click another influencer's link before buying, it was not yours either. The screen tends to create the first contact, not the last one.
• At Mercado Livre, 24 hours. Besides the TV not counting as media, the purchase must be completed within 24 calendar hours of the link visit (item 1.6). A member who scans on Monday and buys on the weekend generates no commission.

That is why "the commission pays for the TV" is not a promise anyone can make. It depends on a sequence you do not control: the member scans, buys in the same session, does not cancel within 30 days and does not pass through another link on the way.

The setup that follows the letter: the TV points to your registered media

There is a path that fits the contracts' text better, and both AIs reach it by different routes: the QR on the TV does not lead to the product. It leads to the gym's Instagram or website, and the affiliate links live there (bio, a "finds" highlight, stories). Under Mercado Livre's Terms, a valid transaction requires the user to arrive "through the Special Links placed on the Media reported by the Affiliate" (item 1.6). In this setup, the link sits on reported media.

Two caveats, without which the setup does not work:

• the media must have been reported to the program beforehand (item 1.3), and Mercado Livre requires an "active public profile, of your own and used regularly" (item 1.2(j));
• the 24-hour window still applies, and so does Magalu's last click.

We do not say any program "approves" this setup: we say it is what the text describes. Check with your program's support before investing production time in it.

Commission math against the screen's monthly fee

If you still want to test it, do the math first, with your own variables:

Hypothetical example, only to show the structure of the math: 4 attributed sales in the month, a net ticket of R$ 120 and an 8% rate give R$ 38.40 in commission. To cover the JMV Indoor Start plan (R$ 49.90/month for one screen), you would need 6 attributed sales in the same month, under the same conditions. The example numbers are not a market average or a forecast: replace them with yours and with the real category rate in your program.

Scenario calculated with the price table in force in October 2026 (Start R$ 49.90 · additional screen R$ 29.90 · Pro R$ 199.00). Check current prices on the plans table.

What the math shows is that affiliate commission can be extra revenue, but it is the most uncertain revenue a screen can have. The screen's cost, on the other hand, is fixed and known.

QR code on an indoor TV: how to build the piece (where the program does not ban it)

If your program does not ban it and you decide to test, the piece on the screen is advertising, and that has practical consequences:

• Label it as an ad. The Brazilian Consumer Protection Code, art. 36, says advertising must be shown "in such a way that the consumer can easily and immediately identify it as such". On the piece, a visible label such as "partner offer" or "affiliate link". Members must not take it for a neutral recommendation from the gym.
• Do not show a fixed price. Magalu's Terms (item 3.3) say offers may change without notice, including at checkout. A video with a price goes stale in hours. Use "see the price on the QR".
• Do not alter the official artwork. Altering official artwork and images is on Magalu's list of what is not allowed. Use your own photo and text, or the official art unchanged.
• Large QR, high contrast and screen time. The code must be readable from where people stand and stay on screen long enough for them to take out their phone. Size and timing tips are in customer survey QR code on the store TV and in Google review QR code on the restaurant TV.

One point in favor, which the source episode gets right: affiliates need no stock and no invoicing, because the program's store makes the sale. Magalu's Terms even say the influencer must not collect the customer's personal or payment data. And the price the member sees through the link is the same as on the site: item 3.3 says offers reflect what is shown on Magalu's own sales channels.

More predictable ways to pay for the screen

If the screen needs to pay for itself, there are two paths where the rule is yours, not a third party's contract:

If you are weighing a flat fee or a percentage from a local advertiser, and how to prove the screen brought in customers, see charging indoor TV advertisers: flat fee or percentage. There, the percentage is a number you negotiate and measure; with affiliates, it is a number another company sets. And if you are still on your first screen, the math of who pays for what is in indoor TV side income: start with one screen.

The episode behind this article

The idea of paying for the gym TV with affiliate commissions comes from the Café & Tech episode of 07/02/2025 (in Portuguese), with Mário Sérgio, solutions consultant at JMV Technology, and Josimar Machado, around minute 34. The episode gets the mechanism right (no stock, no invoicing, same price as the site) and does not go into the contracts, which is what this article adds. Watch the excerpt on YouTube.

In short: before you put an affiliate QR on the TV, open your program's contract and look for three things, in this order: whether it bans offline promotion (Amazon does), whether the TV counts as media that generates payment (at Mercado Livre it does not) and how the sale is attributed (last click at Magalu, 24 hours at Mercado Livre). If it passes all three, label the piece as an ad and treat the commission as uncertain revenue. For revenue that pays for the screen every month, local advertisers and coupons with partner stores remain the more predictable paths. For how data is handled on this blog, see the Privacy Policy; for the general mechanics, Wikipedia has an entry on affiliate marketing.

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