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April 2, 2026

# What Is Merchant Feed Validator? A Practical Guide to Product Feed Validation

Validating a feed before submission catches the same errors Merchant Center will flag anyway — the only difference is finding out in seconds instead of waiting through a multi-hour processing cycle to see the disapproval.

Merchant Feed Validator exists to solve one specific, recurring problem: product feed validation is easy to get wrong by hand, tedious to check manually across a whole site, and quick to fix once you can actually see it clearly. That's the gap Merchant Feed Validator fills.

In practice, this usually comes up in one of two situations — you're setting things up correctly from the start on a new page or site, or you're auditing something that already exists and trying to find what's silently broken. Both are worth doing regularly, not just once.

A few things worth keeping in mind:
- Validate after every feed regeneration, not just the first submission — schema drift creeps in silently as your product catalog or CMS changes.
- Check character limits per field (150 for title, 5000 for description) — feeds that pass locally can still get truncated or rejected if a plugin adds unexpected length.
- Confirm GTIN/MPN formatting matches the required pattern for your product category — malformed identifiers are a very common, easy-to-miss rejection reason.

It's also worth knowing what commonly goes wrong here. Only checking for missing required fields while ignoring formatting issues (extra whitespace, wrong currency codes) that also cause silent disapprovals. And avoiding these is usually less about effort and more about knowing to check in the first place.

This connects to a few other things worth getting right at the same time — see Competitor Product Research Tool and Google Product Category Finder for the related pieces of the same technical foundation.

If you want to check this on your own site right now, Merchant Feed Validator runs directly in your browser, free, with no account required.

Try Merchant Feed Validator yourself

Everything in this guide runs directly in your browser — no signup, no install.

Open Merchant Feed Validator →
More on product feed validation
The Product Feed Validation Checklist: What to Verify Before You Publish
A short, practical checklist for product feed validation — the things worth checking every time, not just the first time.
Merchant Feed Validator vs. Doing It by Hand: Is It Worth Switching?
A practical look at what Merchant Feed Validator actually saves you over doing product feed validation manually, and when manual still makes sense.
Product Feed Validation FAQ: Questions People Actually Ask
Straight answers to the questions that come up most often about product feed validation.
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