An Odoo module can save weeks of development or block your next upgrade. Use this checklist to check version, dependencies, support, updates and reviews before you buy.
DEBy DevMarket Editorial·Published: ·6 min read
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An Odoo module can save a team weeks of development, or it can quietly become the thing that blocks your next upgrade. The difference is rarely visible in a screenshot. It shows up in the details of a listing: which Odoo versions it supports, what it depends on, how long the author answers questions, and what happens when Odoo releases a new version.
This guide gives you a short, repeatable way to choose a module you can live with for years. It works for any module, from a small report to a full accounting add-on, and every point can be checked on the product page before you pay.
Start with your Odoo version and edition
Odoo ships a new major version every year (17.0, 18.0, 19.0), and a module is written for specific versions. A module built for 17.0 is not guaranteed to install on 19.0, because models, views and the web client change between versions. Look for an explicit list of supported versions, and for a changelog that shows the author keeps up with new releases.
Edition matters too. Some Odoo apps exist only in Enterprise. If a module depends on one of them, it will run only on Enterprise, however good it looks. The requirements in the description should say whether the module needs Enterprise, and which other apps it expects to be installed.
Declared is not the same as verified
A declared version is the author's promise. A verified version is one that a reviewer actually checked. Prefer verified versions when you can, and plan your own test either way.
Read what the module changes in your database
A module is not just a screen. Before you install it, find out three things:
What it depends on. Every dependency is another module you must keep compatible. A module that needs three other add-ons is three more things to check at every upgrade.
What it adds or overrides. New models are easy to live with. Overridden core methods and changed accounting entries need more care, because they affect every other module that touches the same code.
How it behaves when removed. Ask what happens to the data it created if you uninstall it. You may never remove it, but it is far better to know in advance.
A good description answers these questions in plain words. If it does not, ask the author before you buy. A short, clear reply is a good sign; silence is information too.
Check the support period and the update rules
Odoo is not a tool you install once. You will upgrade it, and your modules have to follow. That is why the terms next to the price matter more than the first installation:
The support period is how many months the author answers questions about the item.
The update policy says whether you get updates for life, or only while support lasts.
If you plan to move to the next Odoo version within a year, a module whose updates stop when support ends deserves a closer look than one with lifetime updates. Both are legitimate. You are simply choosing how long you want the author on your side.
See what is in the download
The files you receive should match your needs. Check whether the archive includes the full source code, documentation, an installation guide, demo data, translation files and a licence file. A module that ships with a changelog and translation files is usually easier to maintain than one that ships a bare folder.
Read the reviews that matter
Reviews tell you what the description cannot: how the module behaves in a real company, and how the author treats people who report problems. On DevMarket only buyers with an active licence can review an item, and authors can reply in public. Look for reviews that describe a real setup, and read how the author answers criticism. A calm, specific reply is worth more than a perfect score.
Try before you buy, then test on a copy
If the listing offers a live demo or a product tour, use it to see the screens and settings you will rely on. Then, once you have bought the module, never install it first on your production database. Restore a recent backup to a test server, install the module there, and run the processes your team uses every day. Only when that works do you repeat the installation on production.
A ten-point checklist
Check
What a good answer looks like
Odoo versions
Your exact version is listed, ideally as verified
Edition
The description says if Enterprise is required
Dependencies
A short, named list
What it changes
New models and views; overrides are explained
Support
At least six months, with a clear way to ask
Updates
Lifetime, or a period that fits your upgrade plan
Download
Source code, documentation and a changelog are included
Reviews
Specific, recent, with calm author replies
Licence
You understand what you may and may not do
Refund rules
You know the conditions before you pay
Work down the list and stop at the first row you cannot tick.
Red flags
A description that is mostly marketing and never names the Odoo version.
No changelog, or a changelog that stops long ago.
A module that replaces core behaviour without saying so.
An author who cannot be reached before the sale.
A price that is very low for a large promise: complexity has to be paid for by someone.
A simple way to decide
Score each row of the checklist as clear, unclear or missing. A single missing row is not a reason to walk away, but two or three are. When you are still unsure, ask the author one concrete question: for example, which Odoo version they tested on and which other modules they know it conflicts with. How they answer will tell you most of what you need.
Ready to look? Browse the Odoo modules section, open the compatibility list and the changelog of any item you like, and read the Licence terms so you know exactly what you are buying. If you are planning a version change, read our guide to upgrading Odoo with third-party modules next.
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