Integration Manager Error - "Please check and reenter date"

Ok, so you are importing transactions in Integration Manager.

The integrations keep failing and saying the captioned error.

The Possible Issue:
- Date Format on Computer is different from that in GP and that from your data file.

My issue:
- GP date 2018-01-31
-System date 2018-Jan-31

To Fix:
- Change the date setting in the system to match GP  i.e. 2018-01-31

Voila!