In the Condition Parameters dialog box, you define a condition that will satisfy the WaitForCondition system function. You can also specify optional activities to occur if the condition is satisfied; these options include updating data fields in the waiting or waited-for work item and calling another workflow map. See About WaitForCondition for additional information.
The Condition Identifier of the selected workflow displays, along with its data type.
In the Expression Builder dialog box, choose the source of the data from the drop-down list at the top of the page: Data Fields (in the waiting workflow), Data Fields in the waited-for workflow, Workflow Groups, Functions, and so on.