I've sat in enough architecture meetings where this question comes up to know how it usually goes. Someone proposes building the backend logic in Apex because "we're already in Salesforce." Someone else pushes back because they're more comfortable in Node.js and the team is faster there. Both sides make reasonable points. Nobody has a clear framework for deciding. The meeting ends without resolution and the decision gets made by whoever writes the first line of code. That's not a great way to make architectural decisions. So let me try to give this question the honest treatment it deserves. This isn't really about which technology is better. Apex and Node.js are solving different problems for different contexts. The real question is where your business logic actually belongs — and that depends on things that have nothing to do with language preference. For any team working within or alongside Salesforce, understanding this distinction is fundamental.…