AP Invoice Account Coding

When AP invoice has multiple lines with different requesters, we want the invoice account coding workflow should only trigger the respective line to the requester and not all the lines. Example - 1 AP non-po matched invoice has 2 lines with different requesters. Line 1 = Mr. A, Line 2 = Ms. B

System should send line 1 only to Mr. A and line 2 to only Ms. B

Currently, system is sending both the lines to both the requesters which is not what we want.