Hi, is it possible to add dependency for a subflow, so it will wait for a task to complete? Similar like wait_for when using a task.

subflows are blocking by default, so subflow B won't start until subflow A finishes (without wait_for) wait_for currently exists on subflows for tasks, but not for subflows because flow doesn't have .submit - we have open issue here https://github.com/PrefectHQ/prefect/issues/6689

Hmm, so currently I can't define dependencies properly if I have tasks and subflows in a flow?

it depends on what you're trying to do and how you do it - this may clarify https://medium.com/the-prefect-blog/modular-data-stack-build-a-data-platform-with-prefect-dbt-and-snowflake-part-7-95f908d29a01