Select a business domain according to the application you want to access (Taxations, Customs, …)
Select the place / country where you want to be redirected in order to perform your authentication.
Select the type of entity you want to act for according to the ones which are available to you.
Select the type of identifier of the person that you want to act for (EORI, VAT for companies, eID, NATID for natural person for instance.
Select the identifier of the person (VAT, EORI number, EU login account, etc).
You act for yourself, i.e. you do not work on behalf of someone.
You do not cat for yourself, but on behalf of another person (natural or legal)
Select the type of entity you want to act for according to the ones which are available to the delegator.
The delegation is directly done between you and the delegator without an intermediary person.
The delegation is done through an intermediary person that mandates you to act on behalf of the delegator. Details of this the perform that mandates you will be given below.
Select the type of identifier of the person from which you receive the mandate (EORI, VAT for companies, eID, NATID for natural person for instance.
When clicking here, you will be redirected to the selected authentication portal in order to be authenticated and after you will be redirected to UUM&DS or to the application if no extra-steps are needed.