There are alternate integrated CC payment processors but I haven't heard of that one before.  I would not believe it "integrates seamlessly" unless their website specifically names Sage 100.  True integration takes a serious effort and investment.

I asked the rep to provide me a link to their website and he linked to Sage Accounting, not Sage 100. I pointed that out and he hasn't responded. It shows he didn't know what he was talking about.

Hi Sage100User , thank you for your inquiry. Our support team has confirmed that Sage 100 does not offer any built-in integration with Stripe. While there may be third-party solutions that facilitate this integration, please note that these are not supported by our Sage 100 team.