Selling on KuantoKusta Portugal 2026: Marketplace Seller Guide, KK Cash & CPC+Marketplace Hybrid

1. The KuantoKusta Landscape in 2026

From Porto Garage to Portugal's #1 Comparator

KuantoKusta was founded in 2003 in Porto by Paulo Pimenta as a vertical-search engine for Portuguese product prices — a domestic answer to Idealo (DE) or Ceneo (PL). Vouchers were added in 2007, mobile apps in 2012, and the decisive marketplace pivot came in 2018.

By 2026 KuantoKusta is unambiguously the #1 player in Portuguese product discovery, with roughly 5 million monthly unique visitors against Portugal's ~10M population — a reach of roughly 80% of Portuguese online shoppers. It has become a domestic verb: "vou kuantokustar" ("I'll go kuantokusta it") routinely shows up in Portuguese consumer language for pre-purchase research.

Catalog Footprint & Why It Matters

KuantoKusta indexes roughly 20 million products across 4,000+ Portuguese and EU merchants in 700+ categories. Electronics, home appliances and PC components remain the historical core, but fashion, beauty, baby & kids, sports and pet supplies have grown significantly since the 2018 marketplace pivot.

For a Portuguese e-commerce seller in 2026, KuantoKusta is rarely optional. Whatever your channel mix, Portuguese shoppers will research your category on KuantoKusta before buying — and if your listing is missing or uncompetitive, you lose the consideration set before checkout. The choice is not "do I sell on KuantoKusta?" but "do I use CPC, Marketplace, KK Cash, or all three?"

2. CPC + Marketplace Hybrid — The 2018 Pivot

Why KuantoKusta Pivoted in 2018

For its first 15 years, KuantoKusta was a pure CPC comparator. The model worked beautifully when Portuguese e-commerce was small and undifferentiated — but by 2017 it had two structural weaknesses. Conversion happened off-platform, so bid optimisation was a guessing game. And mobile shoppers — by then over 60% of Portuguese e-commerce traffic — increasingly abandoned the journey when bounced from a polished KuantoKusta listing to a slower merchant checkout.

The 2018 pivot to a hybrid model solved both problems. Sellers could now choose to process checkout on kuantokusta.pt (the marketplace mode), giving KuantoKusta full conversion visibility and lifting mobile conversion significantly. Crucially, CPC mode was retained — sellers were never forced into marketplace. Eight years later this dual rail is KuantoKusta's defining architectural feature.

CPC Mode in Detail

In CPC mode, KuantoKusta indexes your product feed and ranks each SKU against competing offers. When a shopper clicks "Visit shop" or the equivalent CTA, they are redirected to your e-commerce site, you handle checkout, payment and fulfillment, and KuantoKusta charges your account the agreed CPC for that click. Typical 2026 bid ranges:

• Consumer electronics, PC components — €0.20 to €0.80 per click; highest because conversion intent is strongest and product prices are high
• Home, kitchen, garden, sports — €0.10 to €0.40 per click
• Fashion, beauty, accessories — €0.10 to €0.30 per click
• Books, low-margin commodities — €0.05 to €0.15 per click

CPC mode is the right choice when you have a polished own-shop checkout, want to control the customer relationship end-to-end (email list, post-purchase upsell, cross-channel retargeting), and your unit economics tolerate roughly 3–8% of revenue spent on KuantoKusta CPC.

Marketplace Mode in Detail

In marketplace mode, checkout happens on kuantokusta.pt itself. The shopper completes payment through KuantoKusta's payment provider, KuantoKusta forwards the order to the seller via API or Merchant Center, and the seller ships from their warehouse. KuantoKusta retains the commission (3–18% depending on category) and remits the balance to the seller on a regular settlement cycle (typically 14 days net).

Marketplace mode is the right choice when you want maximum conversion on KuantoKusta's polished mobile checkout, are happy for KuantoKusta to own the customer relationship, and your unit economics absorb a higher per-order cost in exchange for higher conversion rates.

The Right Answer Is Almost Always Both

The pragmatic 2026 playbook is to run both rails in parallel: marketplace for high-volume, lower-margin SKUs where conversion lift matters most, and CPC for high-margin SKUs where you want to own the customer journey. Zunapro lets you toggle CPC and Marketplace status per SKU from a single panel — no double-listing, no feed duplication, no risk of price drift.

3. Onboarding — Merchant Center Step-by-Step

What You Need Before Applying

KuantoKusta's seller onboarding is handled through the Merchant Center at merchant.kuantokusta.pt. Before applying, gather:

• Portuguese NIF (Número de Identificação Fiscal) — or EU VAT number plus an appointed Portuguese fiscal representative if you're cross-border
• Certidão Permanente — Portuguese commercial registry extract (or equivalent EU company registration document)
• Portuguese IBAN (PT50…) — required for payouts; SEPA IBANs from other EU countries are accepted with extra verification
• Liability insurance certificate — required for certain regulated categories (electronics, cosmetics, baby products)
• Live e-commerce shop URL — KuantoKusta verifies that your domain is operational, SSL-secured, and meets baseline UX standards before approving CPC mode
• Sample product feed in XML or CSV — even 50 products is enough to start the review process

The Review Process

Document review typically takes 3–5 business days. KuantoKusta's onboarding team verifies the Certidão Permanente against the Portuguese Commercial Registry, confirms the NIF/VAT number is active in AT (Autoridade Tributária e Aduaneira), validates the IBAN, and runs an automated check on the e-commerce shop URL. Rejections most often happen for three reasons: an inactive NIF, a shop URL without SSL or with a broken checkout, or a product feed that fails schema validation (the next section covers feed requirements in detail).

Merchant Center Onboarding Wizard

Once approved you receive Merchant Center credentials and step through a four-stage wizard:

1. Account setup — confirm contact details, choose CPC mode, Marketplace mode, or both
2. Feed connection — upload XML/CSV, or configure URL polling (KuantoKusta polls your feed every 30–60 minutes)
3. Category mapping — map your shop's categories to KuantoKusta's internal taxonomy (700+ categories); the wizard auto-suggests mappings using ML
4. Go-live checks — KuantoKusta runs an automated audit on the first 100 SKUs and flags missing fields before activation

How Zunapro Streamlines Onboarding

If you connect KuantoKusta through Zunapro, the onboarding wizard delegates most of the four stages above. Zunapro pulls your master catalog from Shopify, WooCommerce, PrestaShop or your custom backend, auto-generates a schema-valid XML feed, registers it with Merchant Center via the official KuantoKusta API, and proposes category mappings using its own taxonomy ML — typically reducing onboarding effort from 4–6 hours of manual work to under 15 minutes of click-through confirmation.

4. Product Feed — XML vs CSV Schema

The Two Feed Formats

KuantoKusta accepts product feeds in two formats. XML is preferred for catalogs above 1,000 SKUs and for sellers who need fine-grained category nesting, variant linking and real-time price updates. CSV is simpler for small-to-medium catalogs (under 1,000 SKUs), is easier to generate from spreadsheet exports, but supports fewer optional fields. Most Zunapro users run XML by default — the file is auto-generated, gzip-compressed and pushed to KuantoKusta's polling endpoint, no manual CSV exports required.

Mandatory Fields (Both Formats)

• product_id — your internal SKU identifier; must be stable across feed updates
• ean or gtin — global trade item number; KuantoKusta uses this for product matching and de-duplication against competing offers
• name — product title, ideally with brand + model + key spec (e.g. "Smartphone Xiaomi Redmi 13C 8GB/256GB Preto")
• description — long-form description; KuantoKusta extracts entities (brand, model, colour, size) for filtering
• category — KuantoKusta taxonomy ID (mapped during onboarding)
• price — VAT-inclusive in EUR; KuantoKusta refuses ex-VAT prices in B2C feeds
• stock_quantity — integer; SKUs with 0 stock are hidden from search but kept indexed
• image_url — primary image; KuantoKusta also accepts a gallery of up to 10 additional URLs
• shipping_cost — default mainland Portugal shipping cost; can be overridden per shipping zone
• delivery_estimate — expected delivery window in business days (e.g. "1-3" or "2-5")

Recommended Optional Fields

• brand, model, color, size — improves filterable facets in search results
• warranty_months — Portuguese law requires 2-year minimum warranty on consumer goods; surfacing extended warranties is a conversion lift
• original_price — RRP/MSRP; enables "discount %" badges in search results
• kk_cash_percent — opt the SKU into KK Cash with a per-listing cashback offer
• condition — "new", "used", "refurbished"; mandatory for refurbished sellers
• energy_class — required for EU Energy Label categories (white goods, lighting)

Feed Polling vs Real-Time Push

By default KuantoKusta polls your feed URL every 30–60 minutes for changes. For high-velocity SKUs (rapid stock changes, dynamic pricing) you can also push real-time updates via the KuantoKusta Merchant API — typical use cases are price drops triggered by competitor moves and stock decrements after a marketplace sale. Zunapro pushes real-time updates by default whenever your inventory engine emits a stock or price event.

5. Commission Structure 2026 — CPC Bid + Marketplace Fee

The Two-Layer Cost Model

KuantoKusta's cost structure has two layers. CPC-only mode charges per click on outbound links to your shop; no commission, since the sale doesn't happen on KuantoKusta. Marketplace mode charges a category-based commission on completed sales, plus an optional CPC bid layered on top for priority placement. Sellers running both rails budget for both layers, with Zunapro's analytics surfacing the blended unit cost per channel.

Marketplace Commission Bands 2026

CPC Bid Ranges 2026

Whether you run CPC-only or layer CPC on top of marketplace placement, the typical 2026 bid ranges by category are:

Category	Low Bid	Median Bid	Competitive Bid
Consumer Electronics	€0.20	€0.45	€0.80+
PC Components / GPUs	€0.25	€0.55	€1.00+
Home & Garden	€0.10	€0.20	€0.40
Sports & Outdoor	€0.10	€0.18	€0.35
Fashion & Beauty	€0.10	€0.15	€0.30
Books & Stationery	€0.05	€0.08	€0.15

Reading the Numbers

The fastest way to sanity-check unit economics: take your gross margin per SKU, subtract the commission band (marketplace) or expected CPC × clicks-per-conversion (CPC mode), and what remains is your contribution margin after KuantoKusta. For most Portuguese electronics resellers, marketplace mode at the 3–7% band leaves more contribution than CPC at €0.50/click × 25 clicks-per-conversion (= €12.50 per sale) on items below €200 RRP. Above €500 RRP the math typically flips in CPC's favour. Zunapro automates this break-even calculation per SKU.

6. KK Cash — The 10% Cashback Conversion Engine

What KK Cash Is

KK Cash is KuantoKusta's cashback rewards programme, launched in 2022 in direct response to the rise of cashback browser extensions (Honey, Topcashback) cannibalising the platform's CPC affiliate share. The mechanic is simple: shoppers earn up to 10% of the order value back as KK Cash credit on eligible purchases, which they can spend on subsequent KuantoKusta orders. Sellers opt in per-SKU and fund the cashback (typically 2–10% of order value); in return their listings receive a prominent "KK Cash" badge and priority placement in search results.

Why It Converts

KK Cash works for two distinct psychological reasons. First, the badge itself is a social proof and price signal in the search results page — shoppers reading dozens of competing offers gravitate toward the one with a visible reward. Second, KK Cash credit creates a loyalty loop: shoppers who earn KK Cash come back to KuantoKusta to spend it, which compounds your future visibility in their consideration set. Internal KuantoKusta data (cited in their 2026 merchant playbook) shows opted-in listings converting 1.8–2.4× higher than non-cashback equivalents at matched price points.

How Sellers Configure It

Configuration happens at the SKU level in Merchant Center or via the feed. You set kk_cash_percent (between 1 and 10) per SKU, KuantoKusta validates the offer and surfaces the badge in search results within an hour. Funding is netted off your seller balance at order settlement — i.e. you do not pre-pay the cashback, it's deducted from the gross order value when KuantoKusta remits.

When to Use Higher Cashback Tiers

• 2–3% KK Cash — default for everyday SKUs; positive ROI in most categories thanks to the badge effect alone
• 4–5% KK Cash — for competitive electronics where price-comparison is intense; combined with a strong base price, this tier wins the Buy-Box-equivalent
• 6–8% KK Cash — for high-margin fashion or beauty SKUs where conversion lift exceeds the funded cost
• 9–10% KK Cash — for SKU launches and inventory clearance; the max badge tier has its own search filter and unlocks "Top Cashback" promotional slots

The KK Cash Optimiser Loop

Because KK Cash is configured per SKU, Zunapro can run an automated optimisation loop: it starts each new SKU at 2% KK Cash, measures conversion lift over 14 days, increases to 4% if marginal lift exceeds funded cost, decreases to 1% if not. This A/B-style optimisation typically improves blended KuantoKusta margin by 12–18% over a flat 3% default.

7. AT Compliance — Portuguese Tax Framework 2026

VAT (IVA) in Portugal

Portuguese VAT — Imposto sobre o Valor Acrescentado (IVA) — has three rates on the mainland: 23% standard, 13% intermediate (restaurants, certain food categories) and 6% reduced (essential goods, medical, books). The autonomous regions apply different rates: Madeira: 22% / 12% / 5% and Açores: 16% / 9% / 4%. Marketplace sellers domiciled in Portugal must register for IVA once their annual turnover exceeds €14,500 (basic regime) or €15,000 (general regime); cross-border EU sellers can use the OSS (One Stop Shop) regime to file all EU VAT through a single declaration.

AT — Autoridade Tributária e Aduaneira

The AT (Autoridade Tributária e Aduaneira) is Portugal's tax authority, equivalent to HMRC in the UK, the IRS in the US or Skarbówka in Poland. AT runs the Portal das Finanças (the main filing portal), the e-Fatura system and the SAF-T (PT) infrastructure. Every Portuguese marketplace seller has a continuous obligation to report fiscal documents to AT — not just at year-end, but on each invoice issued.

e-Fatura — Real-Time Invoice Reporting

e-Fatura is Portugal's electronic invoice reporting system, mandatory since 2013 and progressively expanded ever since. Every invoice issued by a Portuguese VAT-registered business must be reported to AT through one of the approved channels: certified billing software (most common), the Portal das Finanças web form (for very small volumes), or a SAF-T (PT) monthly upload (covered below). For marketplace sellers, the practical implication is that every KuantoKusta order needs an AT-reported invoice within a tight window — KuantoKusta itself does not issue invoices on the seller's behalf.

ATCUD — Unique Document Code

ATCUD (Código Único de Documento) is a unique invoice identifier that has been mandatory since 2023 and remains mandatory in 2026. Its format is AAAAAAAA-NNNNNNNN:

• The first segment is a validation code obtained from AT for each invoice series (you request these in advance via the Portal das Finanças or your billing software's AT integration)
• The second segment is the sequential document number within that series

The full ATCUD must appear printed on every invoice along with the QR code (see below). Zunapro requests ATCUD validation codes from AT in bulk, generates new ATCUDs sequentially for each marketplace order, and embeds them into the invoice template automatically.

QR Code — Mandatory from 2026

From 2026 every Portuguese invoice must carry a QR code that encodes the invoice data: NIF of issuer and customer, ATCUD, document total, VAT breakdown, and a hash for integrity. The QR code lets AT inspectors verify any printed invoice in seconds by scanning it, and lets consumers verify that their invoice was correctly reported via the e-Fatura mobile app. The technical spec is published by AT; certified billing software (or Zunapro) generates the QR code automatically — manual generation is impractical at marketplace volumes.

SAF-T (PT) — Monthly Audit File

Alongside per-invoice e-Fatura reporting, Portuguese VAT-registered sellers submit a SAF-T (PT) — Standard Audit File for Tax, Portuguese variant — to AT monthly. The file consolidates all sales, purchases and supporting accounting data in a structured XML format that AT can audit automatically. From 2026 SAF-T (PT) submission is mandatory for all VAT-registered businesses regardless of size. Marketplace transactions show up as individual line items, which is why a single source of truth (Zunapro) across all your channels is critical for SAF-T accuracy.

8. e-Fatura — From Order to AT-Reported Invoice

The Invoice Lifecycle

For every KuantoKusta marketplace order, the lifecycle of an AT-compliant invoice is:

1. Order received from KuantoKusta via Merchant Center API (typically within 30 seconds of payment)
2. Customer NIF captured — KuantoKusta passes the optional buyer NIF through the order payload; if absent, the invoice is issued as B2C consumer fatura (consumer final)
3. Invoice generated with a fresh ATCUD from the next slot in the validated series
4. QR code embedded encoding NIF, ATCUD, total and VAT
5. Invoice reported to AT via e-Fatura (real-time webservice for certified software, or end-of-day batch upload)
6. Invoice PDF emailed to the customer and surfaced to KuantoKusta via the order detail update endpoint
7. Invoice line included in the next SAF-T (PT) monthly file

At marketplace volume — even a modest 100 orders/day means roughly 3,000 invoices/month — every one of these seven steps needs to be automated. Manual issuance is operationally impossible.

The B2C vs B2B Split

Portuguese consumer-facing marketplace orders default to fatura-recibo (consumer invoice-receipt). When the buyer provides their NIF at checkout — common in Portugal because of the e-Fatura incentive programme that lets shoppers reclaim part of their VAT against income tax — the invoice becomes a regular fatura, with the buyer's NIF printed and reported. The accounting treatment is the same; only the document type changes.

How Zunapro Automates the Flow

Zunapro's Portugal module is a certified billing partner with the necessary AT integration: it requests ATCUD validation codes for your invoice series, listens to the KuantoKusta Merchant API for new orders, generates the invoice (with NIF captured if present, QR code embedded, ATCUD assigned), reports it to e-Fatura in real time, emails the PDF, and rolls it into the monthly SAF-T (PT) export. The full cycle completes in roughly 8 seconds end-to-end, and the seller never touches a single invoice manually.

9. Portuguese Localisation — pt-PT Not pt-BR

Why It Matters

Many cross-border sellers reach for pt-BR translations because they're cheaper and more readily available — but doing so on KuantoKusta is one of the costliest unforced errors a seller can make. Portuguese consumers actively avoid listings written in pt-BR. The reasons are linguistic (vocabulary differs significantly), grammatical (you/tu/vós usage, second-person verb forms), and cultural (pt-BR signals "foreign seller, possibly low-quality" to many Portuguese shoppers).

Vocabulary Pitfalls — Common Pairs

English	pt-PT (Correct for KK)	pt-BR (Avoid)
Mobile phone	telemóvel	celular
Bus	autocarro	ônibus
Train	comboio	trem
Refrigerator	frigorífico	geladeira
Ice cream	gelado	sorvete
Computer screen	ecrã	tela
Headphones	auscultadores	fones de ouvido
Bathroom	casa de banho	banheiro
Apartment	apartamento (T1/T2/T3)	apartamento (1/2/3 quartos)
Diaper	fralda	fralda (same)

Currency, Decimals and Dates

Portuguese formatting conventions follow continental European norms but with several specifics:

• Currency: €1.234,56 (period for thousands, comma for decimals); the € symbol typically follows the amount in editorial copy ("12,50 €") but precedes in marketplace UIs ("€12.50")
• Date: DD/MM/YYYY format (never MM/DD); spelled-out months are lowercase ("12 de junho de 2026")
• Time: 24-hour format ("14h30" or "14:30"); 12-hour AM/PM is unusual in Portuguese commercial copy
• Phone numbers: +351 9XX XXX XXX (mobile) or +351 2X XXX XXXX (fixed)

Address Format and Postal Codes

Portuguese postal codes use the NNNN-NNN format (e.g. "1100-038" Lisboa). The four-digit prefix identifies the broader region, the three-digit suffix narrows to a sub-area or specific street. Marketplace shipping cost calculations should use the four-digit prefix to determine mainland-vs-Açores-vs-Madeira routing — Açores postal codes start with 9500–9980, Madeira with 9000–9400. Zunapro applies the correct regional VAT and shipping surcharge automatically based on the four-digit prefix.

10. Açores & Madeira — Shipping the Autonomous Regions

Why They're Different

Açores and Madeira are the two autonomous regions of Portugal. Although both are unambiguously Portuguese territory and intra-EU for VAT purposes, they have distinct regional VAT rates and additional logistics paperwork for shipments from mainland Portugal:

• Madeira — VAT 22% standard / 12% intermediate / 5% reduced; postal codes 9000–9400; main island Madeira plus Porto Santo
• Açores — VAT 16% standard / 9% intermediate / 4% reduced; postal codes 9500–9980; nine inhabited islands grouped into Eastern, Central and Western clusters

Failing to apply the correct VAT rate is an AT compliance violation with the same fine schedule as any other invoice error. Failing to apply the correct shipping surcharge is a unit-economics own goal.

CTT — The Default Carrier

CTT — Correios de Portugal is the historical Portuguese postal operator (founded as a royal monopoly in 1520, privatised in 2014, NYSE Euronext Lisbon listed). It runs the densest logistics footprint in Portugal: roughly 2,400 post offices and Pontos CTT pick-up points across the mainland, plus dedicated logistics corridors to Açores and Madeira. For most KuantoKusta marketplace sellers, CTT is the default carrier — it's the only operator that covers every Portuguese postal code natively, including the smaller Açorean islands where private couriers do not operate.

The Alternative Carriers

• DPD Portugal — competitive for mainland B2B and high-value B2C; door-to-door focus; limited Açores/Madeira coverage
• DHL Express Portugal — international-friendly and premium speed; expensive for domestic B2C
• GLS Portugal — small-business friendly courier; strong in mainland Portugal, partial Açores/Madeira
• Chronopost / Seur — Iberian operators with Portugal-Spain corridors; strong for cross-border into Spain
• NACEX — premium next-day operator for high-value SKUs
• Pontos CTT & Lockers — CTT's parcel-locker and convenience-store pick-up network, the local equivalent of InPost in Poland (though much smaller — ~1,000 lockers vs 40,000)

Shipping Surcharges to Açores and Madeira

Typical 2026 surcharges above mainland CTT rates:

• Madeira — €3.50 to €6.00 per parcel under 5kg; €8.00 to €18.00 for heavier or volumetric items
• Açores (Eastern islands) — €4.00 to €8.00 per parcel under 5kg
• Açores (Western islands, e.g. Flores, Corvo) — €8.00 to €15.00; longer transit times (7–14 days)

Customs Paperwork

Although Açores and Madeira are EU territory for goods movements (no customs duty), shipments from the mainland to either region require DAU (Documento Administrativo Único) paperwork in certain cases — typically when the shipment contains controlled goods (electronics above a value threshold, alcohol, certain cosmetics). Zunapro auto-generates the DAU when required based on product category and value, and includes it in the CTT shipping label PDF.

The Practical 2026 Stack

The pragmatic 2026 shipping stack for a Portuguese KuantoKusta seller is: CTT as the default for mainland Portugal and the only viable option for Açores Western islands; DPD or GLS for mainland B2B and larger parcels; Chronopost / Seur when expanding cross-border into Spain; and Pontos CTT lockers when offering pickup as a delivery option. Zunapro's logistics module routes each KuantoKusta order to the optimal carrier based on weight, destination postcode, regional VAT and service-level requirements.

How to Start Selling on KuantoKusta — 2026 Step-by-Step

1. Choose Your Rail (Decision Tree)

• Own-shop checkout already polished, high-margin SKUs → CPC mode
• Mobile-first conversion priority, volume play → Marketplace mode
• Competitive electronics, beauty or fashion → Marketplace + KK Cash 4–8%
• Diverse catalog with mixed margins → both rails, toggled per SKU

The typical winning configuration in 2026 is Marketplace mode as the default with KK Cash 2–4%, layered on top with CPC bids for top-margin SKUs you want to drive to your own shop.

2. Portuguese Company or EU + Fiscal Representative

You have three legal-entity options:

• Portuguese ENI (Empresário em Nome Individual) — sole trader, set up in ~1 day via the Portal das Finanças, lowest overhead
• Portuguese Lda (Sociedade por Quotas) — limited liability company, ~€1 minimum capital, ~3–5 days to register via Empresa na Hora
• Foreign EU entity + OSS + Portuguese fiscal representative — keep your existing company, register for One Stop Shop VAT, appoint a Portuguese accountant as fiscal representative for e-Fatura purposes

3. AT Registration and ATCUD Series

Whichever entity you choose, AT registration is the first compliance step:

• Register for IVA via the Portal das Finanças (immediate online)
• Choose your certified billing software — KuantoKusta does not issue invoices on your behalf, so a certified billing partner (or Zunapro's built-in module) is mandatory
• Request your initial ATCUD series validation codes from AT (one code per invoice series)
• Test issuance of a sample invoice and verify it appears correctly in your e-Fatura account

4. KuantoKusta Merchant Center Application

With AT compliance in place, apply at merchant.kuantokusta.pt with the document set covered in Section 3. Document review takes 3–5 business days; while you wait you can prepare your XML/CSV product feed.

5. Connect via Zunapro (10-Minute Integration)

1. Sign in to Zunapro and open the Portugal module
2. Connect KuantoKusta — paste your Merchant Center API key into the KuantoKusta tile; toggle CPC and Marketplace rails as desired
3. Map your master catalog — Zunapro auto-suggests category mappings to KuantoKusta's taxonomy; confirm with a few clicks
4. Enable AT e-Fatura + ATCUD + QR code — single toggle; Zunapro requests ATCUD codes and configures the invoice template
5. Activate KK Cash optimiser — choose starting cashback level (typically 2%) and let the optimiser learn over 14 days
6. Connect CTT shipping — paste your CTT API key, enable Açores/Madeira surcharge rules
7. Go live — first feed sync to KuantoKusta completes in roughly 60–90 minutes for a 1,000-SKU catalog

KuantoKusta & Portugal Marketplace FAQ 2026