DDMRP Part of standard S/4?

Thanks for doing the blog. Very interesting. Can I just ask is DDMRP part of the standard functionality in S/4 1809? ie. is there any license costs? I'm assuming we can run DDMRP in S/4 1809 without having to use IBP? if we did need to use IBP I'm assuming that part is extra license cost? Thanks in advance.