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Hi Team, Maybe someone knows how to make a custom run name for the flow run. For example, I don't want to see a random run name (red-octopus) , I want see &lt;flow_name&gt;_&lt;datetime&gt;.

Hi <@U01PK3GSH0S> - If you're using the UI you can add a name in the run page If you're using <https://docs.prefect.io/api/latest/cli/run.html#flow|the CLI> you can use the --run-name flag

Or if you want it in your code, maybe try the renameFlowRun task: <https://docs.prefect.io/api/latest/tasks/prefect.html#renameflowrun>

Hey Jenny, is it possible to change the default name though? All the above methods require you to do this on a flow run by flow run basis. Is there something you can do when registering a flow to set a naming template?

<@ULXMV9SD7> Samuel Hinton has a good question above

Yes - that's where you'd use the renameFlowRun task!

Here's what I used:

```from prefect import Flow, task
import prefect
from prefect.tasks.prefect.flow_run_rename import RenameFlowRun

@task()
def getId():
    return prefect.context.get('flow_run_id')

rename_flow = RenameFlowRun()

with Flow(name='simple-flow') as flow:
    runId = getId
    rename_flow(flow_run_id=runId, flow_run_name="A new flow run name")

flow.register(project_name='ProjectName')```


Hi <@ULXMV9SD7>, Im not sure that would work. The idea I believe (for both Igor and I) is, for example, I have schedule a flow that runs at 6pm every day. Im looking for something like this:
```flow.register(project_name=self.project, name="Send email at {date}")```
I believe right now using `renameFlowRun` this is renaming a specific flow run, and I would need to continually run this every day when a new flow is scheduled (unless Ive misread things)

I have a manual solution right now for when backfilling (<@U01PK3GSH0S> maybe this is useful?), but *not* for future scheduled tasks:

```self.client.create_flow_run(
    flow_id,
    parameters=p,
    run_name=f"{flow_name} @ {date_name}",
    scheduled_start_time=start,
)```

Screen Shot 2021-03-23 at 11.59.19 AM.png

You can add that task to your flow to rename all your future runs.  (These are from a schedule but I used 'start now' so I had a few to show you.)

Ah that indeed could be use, thanks Jenny! Didnt realise you could use that within a flow itself, I was imaging having to do some graphql queries to get scheduled flows, this is so much nicer!

<@ULVA73B9P> open "Write an idiom to show using the renameFlowRun task"

<https://github.com/PrefectHQ/prefect/issues/4286>

I think we could explore ways of allowing for run templates but it gets tricky because we have to be careful with what variables we template with — <@U01LL97SZD3> / <@U01PK3GSH0S> what are some of the run name templates you’d ideally like to use?

Ideally the variables in the context (like the scheduled time) and run parameters. The example that springs to mind for me is specifying logging formats in python - theres a default but extra variables are available for use if you want

Totally agree. For example, I am using Schedule(clocks=[clock1, clock2]) with parameter_defaults. I want to see where is clock1 runs and where is clock2.

Ok cool cool thanks, this is super helpful