This dialog box is displayed when a managed test plan is saved and duplicate test descriptions are found. These duplicates are usually a result of the editing process.
You can select a test description that will retain the original test ID, or you can use Reset All IDs to generate new identifiers for all test descriptions. Reset All IDs has database ramifications and affects any existing Silk Central and Issue Manager references to the test description ID. This means that an existing reference will no longer be valid.