What does an exclamation mark on a tool in Alteryx Designer indicate?

An exclamation mark on a tool in Alteryx Designer signifies that the tool is not configured correctly. This visual indicator alerts users that there is an issue with the tool's setup that needs to be addressed before the workflow can run successfully. It prompts users to check the configuration settings, ensuring that all necessary inputs, parameters, or dependencies are correctly set. Recognizing this symbol helps users troubleshoot and fix problems early in their workflow design, which can save time and prevent errors when executing the workflow.