UiPath Activities

The UiPath Activities Guide

Log Message


Writes the specified diagnostic message at the specified level. These messages are also sent to Orchestrator and displayed in the Logs page.



If any Add Log Fields activities are used prior to this activity, the extra custom fields coming from those activities are also appended to the logs.



Due to internal changes, this activity will no longer be visible in the Favorites list when upgrading to v20.4 or newer, if it was added to the Favorites list with a v19.4 or older version of UiPath.System.Activities.



  • Message - The message you want to log. Depending on the option selected from the Level drop-down list, the message is displayed only at that severity level. Only strings and string variables are supported.



Starting with the v2019.10 release, the default communication channel between the Robot Executor and the Robot Service has changed from WCF to IPC. When this happened, a fixed upper limit of 10000 characters was introduced.

  • Level - The severity level of the message to be logged. The following options are available: Trace, Info, Warn, Error and Fatal. Additional information can be found here.


  • DisplayName - The display name of the activity.


  • Private - If selected, the values of variables and arguments are no longer logged at Verbose level.

Updated about a year ago

Log Message

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