What is an IDU?
An IDU (Unique Identifier) is a number required in some countries to prove that the seller complies with local rules regarding recycling, packaging, or the environment.
This number is often linked to a system called Extended Producer Responsibility (REP / EPR).
Am I affected?
You are affected if:
You are the official seller (the one billing the end customer),
You sell packaged products to customers located in other countries,
And those countries require sellers to register.
Even if TPOP ships the products for you, you remain legally responsible.
Do I need to register in every country?
In most cases, yes.
Each country in the European Union (and beyond) has its own rules.
There is no unified system or single number valid everywhere.
You will generally need to:
Register with the official organization of the relevant country,
Obtain an identifier,
Declare it if requested by a marketplace or an authority.
Orientation Table
Country | Mandatory registration? | Link to the official body |
| Yes | |
| Yes | |
| Yes (depending on volumes) | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Yes |
France
Germany
Italy
Spain
Belgium
Netherlands
Austria
Sweden
Poland
PortugalThis table is provided for reference only. Rules may change. Make sure to check official websites for updated procedures.
In summary
You sell to… | Do you need an EID? |
Clients in your country | No |
Clients in another country | Yes, if that country requires it |
If you sell internationally, we strongly recommend checking your local obligations to stay compliant.