An Order is not going through NetSuite. The error showing in integrator.io is that 'there are Multiple Matches for that item'.
This is a NetSuite issue that occurs when an Item's name and Vendor code matches. The NetSuite search returns all the items.
Item Name matches Vendor code. Look under vendors tab.
Edit the search > Criteria Tab > Standard Sub tab and remove ‘Name’ and use this field instead: ‘Name (Internal)’. This will exclude results with the same Vendor Code.
Reference in SuiteAnswers: