What is the Heureka Watchdog extension?#

Heureka Watchdog is an extension that automatically checks your advertising on Heureka CZ and SK every day. It detects issues that block product visibility and hurt sales, and offers tools to fix them quickly — directly in Mergado, without having to check the Heureka admin manually.

The extension monitors product matching, lonely items on product cards, product positions compared to competitors, category name quality, PPC advertising settings, and the overall status of your online store’s Heureka admin. It displays everything clearly, alerts you to any issues found, and lets you fix them in just a few clicks.

The extension is ideal for:

Online store owners who want their Heureka advertising in top shape and want to achieve maximum visibility and sales.
Agencies and freelance specialists managing Heureka for multiple clients who need to quickly detect and fix issues to keep advertising running without downtime or wasted budget.
Anyone who doesn’t want to waste advertising budget on ads that don’t bring customers.
Online stores with a large product catalog, where manual checks would take unreasonably long.

Pricing and billing#

The extension price is:

EUR 7 per month with monthly billing,
EUR 5.60 per month with annual billing.

The price applies to one project (in Mergado) and is fixed, regardless of the number of products in the project.

Due to technical dependencies, the extension is billed in line with the billing frequency selected in Mergado Editor. Different billing frequencies cannot be set for individual services.

The Heureka Watchdog extension has a 10-day free trial.

What you need to run the Heureka Watchdog extension#

An active Mergado Editor account.
Mergado connected to Heureka via the Mergado Keychain extension.
The Verified by Customers (Ověřeno zákazníky) certificate from Heureka.

Key features#

Product matching and fixing unmatched items — Finds products that are not matched to the correct product card on Heureka and helps you assign them to the right cards. Matching usually takes effect within 24 hours.
Detecting lonely products — Alerts you to items where your online store is the only seller on a product card, or conversely, where a second, more popular card for the same product exists with more competitive offers. Lets you re-match products where they have a better chance of attracting customers.
Category name optimization — Identifies categories (CATEGORYTEXT element) whose names don’t match the Heureka category tree and offers a fix with suggestions for supported names. Correct categorization improves product discoverability.
Store settings and PPC mode monitoring — Checks whether your online store has an active Verified by Customers certificate, PPC advertising enabled, sufficient credit, and correct contact details (logo, phone, email). These factors directly affect how ads function and their click-through rates.
Product position monitoring — Alerts you to items that appear too low on product cards compared to competitors and lets you address the situation.
Matching overview chart — Shows the proportion of matched, lonely, and unmatched items, giving you an instant overview of your advertising status.

How to activate the Heureka Watchdog extension#

Activate the extension in Mergado Store: I want to activate → select the project you want to enable the extension for → Activate.

Working with Heureka Watchdog#

After activation, the extension automatically analyzes your Heureka project every day.

How to work with analysis results

Unmatched products — Watchdog lists unmatched items and, where possible, suggests suitable matching candidates. Match a product by clicking the chain icon next to it. For unique items with no matching product card on Heureka, matching is neither necessary nor appropriate.
Lonely products — Watchdog offers re-matching options to other, better-populated product cards. Re-matching works the same way as matching.
Category fixes — For low-quality category names, Watchdog displays a rename field with suggestions for supported Heureka categories. Save the fix and Mergado will automatically apply it to the feed.
Admin setting alerts — If Watchdog detects an issue with the Verified by Customers certificate, credit, PPC mode, or contact details, it displays an alert with a description of the situation and a recommended fix in the Heureka admin.

Changes made through Heureka Watchdog (especially product matching) appear as rules in Mergado. We recommend placing these rules at the bottom of the rules table, since rules in Mergado are applied top to bottom. A rule placed lower overrides a rule placed higher. When working in Mergado later, be careful not to overwrite rules created by Watchdog with another rule.

FAQ#

What is Heureka Watchdog and what does it do?#

Heureka Watchdog is a Mergado Editor extension that automatically checks your advertising on Heureka CZ and SK every day. It detects issues that block product visibility — such as unmatched products, lonely items on cards, low positions, poor category names, or PPC setting errors — and offers tools to fix them quickly, directly in Mergado.

What are the requirements for using Heureka Watchdog?#

You need an active Mergado Editor account, Mergado connected to Heureka via the Mergado Keychain extension, and a valid Verified by Customers (Ověřeno zákazníky) certificate from Heureka.

How quickly do changes made in Heureka Watchdog take effect?#

Changes usually take effect on Heureka within 24 hours.

What happens to rules in Mergado after making changes in Watchdog?#

Changes made through Watchdog (especially product matching) are saved as rules in Mergado. We recommend placing these rules at the bottom of the rules table, since rules are applied top to bottom — a rule lower down overrides one higher up. When working in Mergado, be careful not to accidentally overwrite these rules.

Which projects does the extension support?#

Heureka Watchdog works with projects of the Heureka.cz - produktový [CZ] and Heureka.sk – produktový [SK] types.