Delete a Project or a Test Execution

This is a companion discussion topic for the original entry at

Hi, as we play around with Test Suite Collection names and delete old/broken test runs, the old/unused Test Suite Collection names still appear in the drop downs when filtering the views, even if they have no associated information to display in the results.

Is there a way for these redundant filter values to be removed from the drop downs to clean up the experience of filtering the results? Cheers

can I delete multi test execution using api or something like this