The problem may be related to the fact that you are using “a/b” as the group name. When you encode the forward slash (“/”) as “%2F”, Camunda interprets the string “%2F” as potentially malicious and camunda may be refusing it.
Test it out by trying to modify the group name without using special characters.
Thanks for your repay,my problem :when I set useGroupPathAsCamundaGroupId:true the request url contained ‘%252F’ due to my group id is ‘a/b’ in my keycloak. I think It’s a bug for client. additional my project depends on camunda 7.18.0! I was not allowed to modify the group name!what should I do