Insert the Missed Date; multiple IDs


I have similar problem as was described in: insert-the-missed-date

But my source data looks like this:

So I have multiple IDs I have to loop over.

I would like to reach this:

Any ideas? Trying to use Groupby loop but it’s not working yet.

Thank you

hi @MichalStepan,

please find my workflow attached and make sure, that your date column is already identified as “Local Date”.

Z_034_fill missing date.knwf (30.3 KB)

Hope, that helps


Wow, thank you very much Tommy.

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