Can I update subtasks based on data in their parent task?

Yes, absolutely! Using the Flowsana rule builder and Flowsana's Variable Substitution capability, you can update values in fields within subtasks based on data in their parent task.

Here are two examples.

Copy data from a parent task whenever a new subtask is created

Here we are triggering the rule to run whenever a new subtask is created. When that happens, we use the {parent. functionality in Variable Substitution to extract the value from the Request Name custom field in the subtask's parent.

Update the field in a subtask whenever that field changes in its parent

Here we trigger the rule to run whenever the Est Completion Date custom field changes in a top-level task. However, we set the action to be applied to that task's subtasks instead of the top-level task itself. And we use the {parent. functionality in Variable Substitution to extract the value from the Est Completion Date custom field in the parent task.