Hi @Maciej_H, thanks for reaching out! As it stands, it’s currently not possible to automatically set dependencies to subtasks via a Rule. You can still mark the subtask as dependent of the task manually: Creating task dependencies | Product guide • Asana Product Guide. We have a thread requesting this feature, I recommend you to add your vote here: Support Dependencies and the ability to multi-home task in "Add Subtasks" Rule. Thanks for your feedback!