Customer number and diary number

What is my customer number at the Finnish Immigration Service?

When a matter that concerns you becomes pending, you will be given a customer number that is unique to you. From that point on, this customer number will be used to identify you. You will have the same customer number for as long as your matter is being processed. The same customer number will also be used if you later have other matters that need to be processed at the Finnish Immigration Service.

Where can I find my customer number?

Your customer number can be found:

  • below your personal details on the certificate of a pending application;
  • in the top right corner of a supplement request or any other letter the Finnish Immigration Service has sent you;
  • in the top right corner of a decision.

Please check your customer number before contacting the Finnish Immigration Service. Make sure to include it in all documents that you submit to the Finnish Immigration Service. This will help us handle your matter faster.

What is my diary number at the Finnish Immigration Service?

Each of your matters will be given a diary number. The diary number will be used to identify your matter throughout the processing of the matter.

Where can I find my diary number?

Your diary number can be found:

  • below your personal details on the certificate of a pending application;
  • in the top right corner of a supplement request or any other letter the Finnish Immigration Service has sent you;
  • in the top right corner of a decision.

Please check the diary number of your matter before contacting the Finnish Immigration Service. Make sure to include it in all documents that you submit to the Finnish Immigration Service. This will help us handle your matter faster.

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