You can identify errors in a test plan by reviewing failed process steps and canceled actions. A test plan is a set of test scenarios that are executed to verify the functionality and performance of your SAP S/4HANA Cloud system. You can use the Manage Your Test Processes app to create and execute test plans for different test process types, such as post-upgrade, custom, or standard. You can also use the app to monitor the status and results of your test plans and identify any errors or issues. You can review failed process steps that indicate that a test scenario did not complete successfully and check the error messages and root causes. You can also review canceled actions that indicate that a test scenario was interrupted or aborted due to technical or functional reasons.