Not sure what they mean by “interact” well but we use NS and Aspire. I have an excellent resource for you if you are interested that I am sure would be able to answer all your questions. 

A part of me is wondering if by interact they meant integrate. Like the integration runs smoothly and the data syncs over without any issues. Here is additional information: 

This may be new, but I’ve always been told that the only two systems that Aspire integrates with (in terms of “out of the box”) are QuickBooks and Acumatica. You can certainly integrate Aspire and NS (we have) but I believe that is something you would pay for independently… If you find out otherwise, please let me know! If you need a resource to develop the integration I have a good reference.