1) Login to TACKLE as admin.

2) Create a stakeholder group

3) Create another stakeholder with the same name 

Error 409 is shown in the attached screenshot.

Expected result: Error message: "Danger alert:Request failed with status code 409"

It May be confirmed by:
https://github.com/amastbau/tackle-ui-tests/blob/main/cypress/integration/tests/controls/stakeholdergroups/create.test.ts
Stakeholder group unique constraint validation