I want to use the service Asan İmza, but forgot my User ID. How can I get this ID?

Question: I want to use the service Asan İmza, but forgot my User ID. How can I get this ID?

Answer: When you receive an Asan İmza certificate from Asan Certification Services Center (ASXM) of the State Tax Service, you are also presented a notification “On activation of certificate” where User ID is shown.