When I register my client application, I'm presented a username and password page. I used the username and password for the developer portal but it doesn't work, what's wrong?

During the authorization process a password form is presented (url: sso.digikey.com), in this form you will use the credentials for your My Digi-Key account.

If you do not have a My Digi-Key account it can be created here: https://www.digikey.com/MyDigiKey/Register

If you do not know your My Dig-Key account credentials or username they can be reset or found here: https://www.digikey.com/MyDigiKey/login