Hi @ralfpuchert
I give it a try with camunda 8.0.4 and it works 
Thanks for the hint with the read permission on Tasklist API.
So,
- I downloaded camunda 8.0.4 docker-compose from GitHub - camunda/camunda-platform: Camunda Platform 8
docker compose -f docker-compose.yaml up -d- add read permission to “Tasklist” application, as you said above:
- get tasklist access token:
- run a graphql query:
Best regards,
Valentin