Tracking on line items of generated invoices

Hi All,

I am using SuiteCRM v 7.9.1 (Build 509).

I want to track the change in the “line items” of the generated invoices. Currently, I am able to track only changes made in the total amount of the generated invoices.

Additionally, I want to restrict the change in the line items of generated invoices to the owner who created it and the higher levels.

I have tried updating

"audited => false"

to

"audited => true"

in

"modules/AOS_Invoices/vardefs.php"

on line number 249. But it doesn’t work.

Please help me with this.

Thanks in advance.

Regards,
Kaushik Karan