Issue seems to be be related to giftcards? If you have a fix please share
You need to figure out what's causing the negative total, which you can often do by reviewing the script logs in NetSuite. Thank you for pointing out this gap in documentation - we will get it addressed. Could you make sure that you set the following field, NetSuite item to track the oder variances as a line item, with a Non-Inventory Item For Sale?
If you don't already have one, you can create a new item in this category. If you do, click Refresh to choose an item from the drop-down. After clicking Save, you can then retry your error in your dashboard.
This should unblock you, but we recommend opening a support ticket to get a thorough resolution here.
