Error message with Data Uploader
I have a workflow in Data Uploader which uses an excel sheet attached to 1 sheet as the source file, and the targeted action is to update the dropdowns on a column on a second sheet. There are no filters and just one simple mapping between the source column and the target column. I have the targeted column formatted as a dropdown.
I keep getting this error message
I have tried partially filling in some dropdown values and leaving them black and the error happens in both scenarios. The strange thing is the first few times I tried, it worked. Then I tried changing the source column to a different column, and now it's not working. I then tried just starting from scratch and using fresh sheets and attachment, and it's still giving me the same error message. What does this error message mean and what could be causing it?