Calling LSMW from RFC

Hello, everyone.

This is my first post, so i hope i'm doing it right.

I'm using Transaction LSMW to create mass vendors with this input parameters:

Project: FI

Subproject: AP

Object: VENDOR_02

It works fine, with the standar steps and a plain text file.

What i'm asked to do is create a WebService that uses this transaction to communicate BizAgi (a BPM) and SAP. The problem is that i don't know how to call this transaction from the RFC. are there any suggestions? Not sure if there's a bapi available for this and i think is not coherent to do a batch input to a transaction like this.

It's my first time using this transaction so any help would be very appreciated.

Thanks for everything.

Luis Allende