Mazeberry blog

The marketing performance blog

Attribution and deduplication on the same boat?

On Friday, March 21st, Mazeberry took part in the round table “attribution and deduplication on the same boat ?” within the context of Web Content Days in Lille. So Thibaut Lemay, founder of Mazeberry, spoke in front of an audience composed of e-merchants and Internet marketing experts to explain the challenges of attribution and deduplication. There is often confusion between these two different notions. Maxime Gailhbaud, traffic manager at Blancheporte, and Olivier Guillaume, responsible for web analytics at, also spoke about this topic.

table-ronde-attribution-deduplication-mazeberry-jdcw-3-1024x764 Attribution and deduplication on the same boat? | Marketing attribution software

Presentation of Mazeberry at the panel “Attribution and deduplication in the same boat?” in Lille

The round table began with Blancheporte’s feedback. Maxime started his presentation by mentioning the confusion related to the various terms: post click, post view, first click, last click, time decay, and so on. The presentation then illustrated the problems related to cookies’ lifetime. Maxime made particular reference to the risks of deduplication for an e-commerce website. According to Maxime, it is important to have a good overview of customer purchasing processes and Internet marketing channels behaviour before any sales deduplication project.

presentation-risques-deduplication-maxime Attribution and deduplication on the same boat? | Marketing attribution software

Presentation of Maxime Gailhbaud, Traffic Manager,

Then it was Olivier’s turn to speak to evoke the issues of deduplication for an online mass distribution brand like According to Olivier, it is important to assess the challenges of a deduplication project before setting it up. Olivier’s feedback was very interesting because he explained that attribution and deduplication weren’t priorities for his company due to several observations. As a matter of fact, a study of conversion paths was carried out in order to determine the percentage of “mixed turnover”. This indicator measures the share of revenues from different acquisition channels. This study showed that most sales of this site came from only one Internet marketing channel. Therefore, there are few issues related to attribution and deduplication for this advertiser. Olivier suggests to advertisers to carry out this kind of audit prior to any attribution or deduplication project.

presentation-attribution-olivier Attribution and deduplication on the same boat? | Marketing attribution software

Presentation of Olivier Guillaume, responsible for web analytics at

But what really is attribution? Is it the same as deduplication? Do these two notions have to be put in the same boat?

Thibaut, founder of Mazeberry, was the third person to speak about the topic. Thibaut brought his expertise on the subject in order to give clear definition and perimeter to each method: attribution and deduplication. According to Mazeberry, attribution is an analysis method which allows to distribue the weight of a conversion between several channels. Attribution applies to all online acquisition channels (Sponsored links, SEO, display, shopbots, retargeting, affiliation, and so on). Deduplication must not be put in the same boat. It consists in conditioning the remuneration of business providers. Deduplication only applies to performance acquisition channels (Affiliation). Thibaut specifies that the non-remuneration of some partners may lead to problems and misunderstandings. Indeed, how can we explain to a web user that his cashback wasn’t validated because another affiliate was credited for the sale? Thibaut summarizes this differentiation between attribution and deduplication with the table below.

presentation-attribution-deduplication-mazeberry-1024x575 Attribution and deduplication on the same boat? | Marketing attribution software

Presentation of Mazeberry at the round table

In conclusion, we can’t put attribution and deduplication on the same boat! Stakes, issues and methods are not the same.

Mazeberry will soon publish a new whitepaper dedicated to this problem, in collaboration with Business & Decision. Suscribe now to our newsletter to be informed about the publication of the whitepaper! You can also download the presentation made by Mazeberry during the round table.

Original French article redacted by Hadrien Germe

Evaluez cet article

About Thibaut Lemay

Thibaut Lemay
Thibaut Lemay, founder & CEO of Mazeberry, is a Marketing and an IT expert. When he's not helping companies overhaul their marketing mix, Thibaut can be found on the green playing golf!

Leave a Reply

Your email address will not be published.

Loading Facebook Comments ...
Back to Top