To use the log filter, you must assign the log filter to a project step using the step Result property. When you assign a log filter to a step, the filters patterns in the log filter are run on the step output whenever the project runs.
Note that when you assign a log filter to a step, the step result that is set by the log filter overrides all other criteria for determining the success or failure of the step. This includes the exit status for the step commands or any step properties. For example, if the step run time exceeds the time specified by the step Timeout property, the step stops. But, its status is not considered a failure unless its associated log filter action causes it to be set to Fail.
To assign a log filter to a step, do the following: