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Verification of the customer register corrects information in advance

The customer register Verification Service ensures your message is delivered to the recipient. The service also reduces the amount of work needed for clarifying incorrect or insufficient addresses and duplicates.

Who is the service designed for?

The customer register Verification Service enables you to check address information, customer data or the information of an invoice recipient. The Verification Service works in a browser or it can be integrated into your own system through an API interface.


Ensure the receipt of your message, enhance customer communications and avoid extra work caused by incorrect or insufficient addresses.

The Verification Service allows you to verify, correct and supplement the address or information of individual consumer customers. The service is based on Posti’s mail recipient register (OTS) that covers all Finns and their home addresses. The Verification Service works in a browser or it can be integrated into your own system.

  • Ensure the receipt of your message

  • Enhance customer communications

  • Avoid unnecessary investigatory work

How does the Verification Service work?

There are different levels in the Verification Service, which can be adopted together or separately. The Verification Service works in a browser or it can be integrated into your own system. The pricing of the browser version is based on the number of verifications carried out and the amount of information found.

The pricing of the application integration, in turn, is based on the service level used, a monthly fee and the number of verifications. Invoice recipient information verification and application integration are contract services.

Service levels

Verify the accuracy of the delivery address in customer service when paying in the web store or via another web service. Those using the Magento e-commerce platform can activate real-time address verification as a module, which means that no separate integration is needed.

Verify the accuracy of your customer’s name and address information as well as their age, for example, in customer service. Using the service allows you to reduce the number of duplicate customers created in the customer register.

The service allows you to ensure the correctness of the name and address information and personal identity number of the consumer to be invoiced. This makes it possible to significantly reduce the risk of invoicing fraud, such as acting under another person’s identity.

The service works together with Posti’s continuous update service. The service controls whether a person is already in your customer register. If the person can be found in your Posti update service customer register, the service will return the customer number or numbers. The service can be used, for instance, to prevent the creation of duplicates with several different customer numbers in the customer register. Only available as an API service.