Where can i get the required software to test???

Hi

I am a business one consultant and a sdk developer. I would like to test the B1i intergration tool. But to do so do i need R3 software??? I would assume you do so that you can see if it comes out on the other side in R3. Where can i get this software from????

I have all SAP business one related sofware and skills. But R3 i do not, so how would one test this??? How are the rest of the consultants on this forum testing it???

Thanks in advance