Hi, just purchased VM Invoice to upgrade my client's e-commerce website for an auto-invoice feature. However, I am using an older VM and cannot upgrade for some reasons because of too many customized functions before that.

Is there any guide to do front-end integration with the older VM 1.1.2?

Thanks in advance..

Well I have found out the line myself. It's quite easy. Located at line 640 at ps_order.php for my version.

Thanks.

Hello,
glad to hear that. Thanks for feedback.