Hello, 

When I try to login to WinCC GraphQL server with my local user that I created on TIA Portal, I get the following error. I am able to login to WinCC Unified Runtime with the same user. The problem only occurs when I try to login to GraphQL server.

I created user as follows.

The endpoint I sent the request is as follows:

https://computer_name/graphql/

What could be the cause of this problem?

Thank you all.

Hi!

Are you following the steps described in the manual on how to login in to the GraphQL server?

Logging in to the GraphQL server

If yes, please check the requirements of your system in the next link:

Requirements

Lastly, this section of the manual could help you:

WinCC Unified GraphQL

Hi, 

Thank you so much for the links but I tried them all. 

Everything written in the Requirements part is done. WinCC Unified RT is installed on PC and a runtime project is running on the PC as follows:

I also can reach GraphQL Server through https://localhost/graphql/:

But still when I tried to login to GraphQL server, I'm getting this error:

The same errors...