Multi-channel feed management: one catalog, every channel
Selling on Google, Meta, TikTok, and Snapchat means four different feed specs. Here is how to manage one source catalog and publish a valid feed to each.
The multi-channel problem
Once you sell on more than one channel, feed management gets hard fast. Google Shopping, Meta, TikTok, and Snapchat each have their own required attributes, their own naming conventions, their own image rules, and their own quirks. The product data is the same, but the shape each channel wants is different.
The wrong way to handle this is to maintain a separate feed file per channel by hand. The moment your catalog changes, you have to update four files, and they drift out of sync. The right way is to manage one canonical source catalog and generate each channel's feed from it automatically.
How the channels differ
The channels share a common core (id, title, price, link, image, availability) but diverge in important ways. You do not need to memorize every spec, but knowing the broad differences explains why one source plus per-channel output is the only sane model.
- Google Shopping: the strictest. Demands GTIN, brand, google_product_category, clean images with no overlays, and exact price and availability matching to your site.
- Meta: uses a similar catalog structure but its own field names and supports creative-rich product ads where badged images perform well.
- TikTok: catalog-driven shopping ads with its own required fields and a younger, creative-first audience.
- Snapchat: catalog ads with its own spec, again favoring strong visual creative.
One source, many outputs
The model that works at any scale is a single canonical catalog plus a mapping layer per channel. You ingest your product data once into a clean, typed source. Then for each channel you map your source fields to that channel's attribute names and apply channel-specific rules and image creative.
This way a change in your source (a price drop, a new product, a restock) propagates to every channel's feed on the next refresh. You never edit four files. You edit one source, and every output stays consistent. It also means each channel gets exactly what it needs: a clean image for Google, a badged image for social, and the right attribute names everywhere.
- 1Ingest your catalog once from a URL or upload into one canonical source.
- 2Map your source fields to each channel's required attributes.
- 3Apply per-channel rules: titles, categories, and image creative.
- 4Publish a validated feed per channel at its own stable URL.
- 5Refresh on a schedule so every channel stays in sync with your source.
Why creative belongs in the pipeline
Most feed tools stop at the data and leave images alone. But on social channels, the image is the ad, and a discount badge or a clean lifestyle frame can lift performance significantly. Doing that creative work outside the feed (in a separate design tool, by hand) does not scale to thousands of SKUs and breaks the moment prices change.
MartechFlow puts image creative inside the same pipeline as the feed. You design a template once, drive it from feed data (for example, a discount badge computed from sale versus original price), and it renders server-side across your whole catalog. Google gets the clean image its rules require; Meta, TikTok, and Snapchat get the badged version. One pipeline produces both the data and the creative for every channel.
Managing it all in MartechFlow
MartechFlow is built for exactly this: one catalog in, every channel out. You connect your source, map your fields, set your rules and creative, and publish channel-ready CSV and XML feeds for Google Shopping, Meta, TikTok, and Snapchat at stable URLs each channel pulls on your schedule.
The promise is to keep it stupid simple even though the engine is powerful. You manage a single source of truth, and adding a channel is a mapping step, not a new spreadsheet to maintain forever.