The PowerCenter Integration Service process creates a workflow log for each workflow it runs. It writes information in the workflow log such as initialization of processes, workflow task run information, errors encountered, and workflow run summary. Workflow log error messages are categorized into severity levels. You can configure the PowerCenter Integration Service to suppress writing messages to the workflow log file. You can view workflow logs from the PowerCenter Workflow Monitor. You can also configure the workflow to write events to a log file in a specified directory.