Ask HN: What closes a B2B Enterprise sales

A lot goes into getting a deal closed - Prospecting, Warm Nurturing, Contract and so much more until the first paid INVOICE. What is most critical? Product (It works like magic) Product (I'm sold at Demo) Product (How efficient is the team) Pricing (let me try and decide for FREE) Pricing (solve all my problems for a penny) Pricing ($$$$ so expensive it must be great) Relationship (who knows who) Relationship (keep be entertained) Relationship (give and take, help me and I help you) What else?