Pushing Internal table data from BW to R/3 When there is no standard BAPI

Hi,

I read an Infocube in BW system to an Internal table ITAB.

I want to use this Internal table ITAB in R/3 .I don't have standard BAPI for my requirement instead I have a standard FM which can complete my task using Internal table .

How can I achieve this?

Any ideas?

Regards

Praveen