Bring your towel and join one of the fastest growing data communities. Welcome to our second-generation open source orchestration platform, a completely rethought approach to dataflow automation.

Prefect Community

*What is the best way for a flow to run to successful completion even if one of the tasks fail*

I have looked at these places <https://discourse.prefect.io/t/how-can-i-handle-errors-allowing-my-flow-runs-to-continue-until-complete-and-not-raise-upon-failure/1431|1>, <https://discourse.prefect.io/t/how-to-continue-flow-to-completion-even-if-individual-tasks-raise-exceptions-prefect-2-0/2343|2>, <https://discourse.prefect.io/t/how-continue-flow-even-if-task-fails/3274|3>

It seems like the best way is to to use your try and except clause here

hi <@U06QNTNK1CH> - `return_state` is useful for this
```In [1]: from prefect import task, flow

In [2]: @task
   ...: def terrible():
   ...:     raise ValueError('oops')
   ...:

In [3]: @flow
   ...: def f():
   ...:     state = terrible(return_state=True)
   ...:     assert state.is_failed()
   ...:     return "and its ok"```
```10:09:26.182 | ERROR   | Task run 'terrible-0' - Finished in state Failed('Task run encountered an exception ValueError: oops')
10:09:26.300 | INFO    | Flow run 'masterful-wrasse' - Finished in state Completed()
Out[4]: 'and its ok'```

thanks for this, I think the main issue was that there wasn't a return statement in the failing task