Hi everyone 👋, Can someone assist with this question please? I simply try to backfill data by passing a datetime parameter https://stackoverflow.com/questions/64029629/is-there-a-way-to-backfill-historical-data-once-for-a-new-flow-in-prefect @Chris White gave an answer, but I can’t get it to work at all.

@Newskooler in the example with Context are you passing in

intended_backfill_start_time

and accessing it as

backfill_time

in the task? That looks to be a typo in the answer

Hi @josh you are right, which is the correct way to write it in this case?

Doesn’t matter which you write. Context here is just accessing an item from a dictionary and therefore the names need to match. Yeah next step would be to loop over a period of time and create the runs

Okay, so why do i not see all past such flow runs in the UI - if I run it and then register it (with a schedule) 🤔

You should be seeing runs in the UI for each one you create when looping through time. The runs won’t be technically scheduled for a time in the past though because when you create the run you’re saying “Run this right now but perform some computation using data from the intended_backfill_start_time”

How should I run in order to see them in the UI and to run them 🤔 : )

I recommend running through this deployment tutorial which will explain some of these concepts better: https://docs.prefect.io/orchestration/tutorial/first.html#write-flow

Thanks. I will read now and may ask again later, if that’s okay @josh: )