I'm grabbing a segment of Google Analytics Event Data and it's quite a ways off in the Supermetrics feed from the GA interface.
Supermetrics (date / data)2017-11-01 439
I followed the instructions you outline here: https://support.supermetrics.com/support/solutions/articles/19000042916-discrepancies-in-google-analytics-results
The discrepancy is larger than 4%, totals above are 3362/2910 = 1.15 = 15% difference.
Step 1: No downtime/issues observed.
Step 2: Checked GA Api and gives me the correct number: 2910 for the same query.
Step 3: Sounds like the issue is on your end.