Delivery Item split for billing

Hello Experts,

I have an urgent requirement here, to implement a limitation based on the amount of the invoice.

So what I have done till now is :

1- Copy the routine existing in the OSS note 192558 and create a new routine in VOFM/Manage data transfer/Invoices

2- Use the ZUKRI field  to split my invoice while the amount required is reached.

Everything is working fine but the problem that am facing is in case my Sales Order has one line item with a big amount.

Can I split one item line into many lines in this routine? Or should I use some Exits/BADI to do it?

Thank you for your help!

Regards,

Imad