Cant get tokens for Test-Server

[Alpho]

I cant get tokens for test-server. I press LOGIN button in my app and then:
{"error":"invalid_request","error_description":"The callback URI doesn't match the value stored for this client"}
The only thing i change is
login.eveonline.com
to
sisilogin.testeveonline.com
I can normally get tokens for tranq, but not for sisi. Callback url is correct (like i set it at https://developers.eveonline.com ), whats wrong?
The button url is like:
https://sisilogin.testeveonline.com/oauth/authorize/?response_type=code&redirect_uri=DOMAIN:PORT&client_id=ID&scope=%20esi-location.read_location.v1&state=123

[Blacksmoke16]

That error is saying the redirect_uri in your button url does not match the one in the dev app. Since it is the test server there is also a diff site for making dev applications for test server: https://developers.testeveonline.com/

[Alpho]

Wow, didnt know that, thanks!