Most Salesforce AWS integrations don't fail loudly, they drift. This guide covers the four integration paths between Salesforce and AWS, when to use each, the silent failure mode hiding in every one of them, and the reconciliation job you have to build yourself.
AppFlow won the spreadsheet at two integrations. Eighteen months and forty flows later it's a line item that gets mentioned in the monthly review. These three options aren't three prices, they're three cost shapes, and the crossover is the whole decision.
Your dashboard shows four percent more opportunities than Salesforce, and the extra rows were all deleted months ago. Incremental sync on SystemModstamp can never see a record that no longer exists. Here's how to build a Salesforce data lake on AWS that stays equal to the source.