← Field Guide

Itinerario 01 · All marketplaces

Foundations: The groundwork every marketplace track builds on.

Every marketplace has its own workspace, templates and vocabulary, but the work underneath is the same: a product has to be identified without ambiguity, described from an approved source, moved through a spreadsheet without being damaged, and checked on the live page before anyone calls it done. Sellers and suppliers who skip that groundwork learn each platform's rules as a list of surprises.

This track covers the four skills that the Amazon and Walmart tracks assume: how a listing is put together, how GS1 identifiers work and fail, how to handle catalog spreadsheets safely, and how to verify your own work.

Espacio de trabajo

All marketplaces

Relación

You → the catalog

Work from a source of truth. Every identifier, attribute and image you submit anywhere should trace back to an approved record, and every change should end with a check of the live page.

4 módulos

44 min de lectura
  1. Módulo 0111 min de lectura

    Anatomy of a listing: identity, content, offer, and the page a shopper sees

    The four layers every marketplace listing is built from, who owns each one, how shared pages are assembled from ranked contributions, what a variation family is, and how to read a live page against your own record.

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  2. Módulo 0211 min de lectura

    GS1 identifiers: UPC, EAN, GTIN-14, who owns a code, and why marketplaces reject it

    How the GS1 numbering system works — the GTIN family, one code per sellable unit, the packaging hierarchy — who a code is licensed to, the three ways marketplaces reject one, and a verification routine to run before any product is set up anywhere.

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  3. Módulo 0311 min de lectura

    Spreadsheet skills: handling catalog files without damaging the data

    The spreadsheet habits every marketplace template, export and error file depends on: respecting the file structure, keeping identifiers intact, joining sheets by key without trusting a bad merge, working on large files safely, and a pre-upload checklist to run every time.

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  4. Módulo 0411 min de lectura

    The QA mindset: evidence, verification, and knowing when something is done

    Why a successful submission is not a finished change, where every value must come from, what evidence to keep, how to classify a problem before fixing it, and the weekly loop and definition of done that keep catalog work provable.

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