Example 7: Application Advice - 810 Invoice is Rejected due to a Line-Item Error X12 Admin Tue, 09/29/2026 - 13:11 ABC Aerospace Corporation sends an 824 Application Advice response regarding an 810 Invoice that is being rejected. The unit of measure for invoice line 3 does not match that of the originating purchase order . An OTI transaction rejection is transmitted which includes error information.