In RPA, what is the purpose of using 'Log Message' activities?

Using 'Log Message' activities in Robotic Process Automation (RPA) primarily serves the purpose of monitoring the workflow execution. This functionality allows developers and administrators to write messages into the log during runtime, which can include information about the progress of the workflow, variables' values, and any errors or warnings that may occur. By analyzing these logs, users can gain insights into how a process is performing, identify points of failure, and troubleshoot any issues that arise. This aspect is critical for maintaining and improving automation processes, as it provides visibility into their operational behavior.

In comparison, the other options focus on different aspects of RPA functionality. Storing credentials securely pertains to secure handling and management of sensitive information within the automation, which is a separate concern from monitoring workflow execution. Triggering other workflows involves initiating separate automation processes based on certain conditions or events, which is not related to logging activity. Lastly, manipulating data refers to the operations performed on data within the workflow, which does not encompass the monitoring aspect provided by log messages.