Discrepancy between add on report & Analytics view

[SAS]

I am trying to run a New Vs Returning Visitor report on Google spreadsheets using the add on for only the Organic channel.

The New Visitors are getting reported exactly as I see it in Google Analytics but the Returning Visitors are way less than what Analytics is reporting.

Here is my configuration:

New Visitors reported by GA add on: 371

New Visitors reported by GA: 371

Returning Visitors reported by GA add on: 52

Returning Visitors reported by GA: 100

Why is there such a big difference in the two reports?

[Laura Jennings]

Hi - I am having the same issue when trying to filter out traffic matching Source / Medium = Facebook / cpc. Analytics is showing 58 goal completions and spreadsheet is only showing 28. Any ideas would be appreciated. I've checked filters, view ID etc and all should be correct.