anyone use SPS Commerce?

Back in 2016-2017, yes. Was my most hated integrator to deal with ever (and I've dealt with a lot). But maybe it's improved in the last 9 years.

Yes we’re still using SPS

Can i ask which industry you are in @Eric B? and which one of there product you are using?

Health and Beauty consumer goods. We use EDI fulfillment.

We use SPS.. We had to do some custom implementations around inventory feeds.