Which activity would NOT help in investigating workflow engine issues?

Modifying system settings for immediate changes generally does not contribute effectively to diagnosing workflow engine issues. While changing system settings might seem like a practical step, it doesn't directly address the underlying problems that the workflow engine is encountering, and it can actually introduce additional variables that complicate the investigation process. Troubleshooting workflow issues typically requires understanding the existing configuration and identifying specific errors or misconfigurations rather than making immediate adjustments that could inadvertently impact other processes.

In contrast, the other activities are foundational to successfully investigating workflow issues. Running a transaction for setup ensures that necessary configurations are properly established. Checking user profiles and roles allows you to confirm that permissions are correctly assigned and that users have the access required to navigate the workflow, which can uncover security-related issues. Reviewing workflow logs for errors provides direct insights into what might be going wrong and helps pinpoint specific failures that need to be resolved. These activities build a clearer picture of the system's functionality and errors as they occur, while modifying settings could cloud the analysis.