I have a Dataflow wherein i have used an augument Transformation which always gives me a warning when dataflow runs: The dataflow was completed, but the LookupSingleValue node didn't augment any columns. Either the node didn't find any matches, or a join key contains only null values.
Now i have a recipe which is referencing the above Dataflow and doing a self join to it.This recipe always fails because of the augment present in the Dataflow which returns no data for augment transformation.
Please suggest how can i avoid this.