@sayyad I'm unaware of any way to do it without some sort of middleware. Dell Boomi is a popular middleware for EDI integration and could allow you to customize an integration. Celigo has added quite a bit to their offerings as well. I can't speak to Celigo, but one nice thing about Boomi (and potentially Celigo), is that pricing is on an annual basis and not a transactional basis like SPS

Celigo is annual as well and doesn’t charge by transaction either.