ERROR: Field Expires contains an invalid date!
I'm currently running Clipper 2.0.0 Dev with Flatter 5.0.1 and when a user goes in to edit an existing coupon and tries to save they receive this:
ERROR: Field Expires contains an invalid date!
The "Expires" field contains in this particular example 2018-07-31 00:00:00.
To get past that error I removed the time portion of it, 00:00:00, so the field just contained 2018-07-31.
Once I got the record to save a subsequent edit of that coupon worked fine as it didn't have the time in that Expires field.