What is an If-This-Then-That Logic?

Named after the consumer automation service IFTTT, this pattern is the atomic building block of rule-based automation: a new email arrives → forward it to a channel; a form is submitted → add a row to a spreadsheet; a file is uploaded → resize it. Each rule is a single trigger mapped to a single action, which makes it trivially easy for a non-technical person to configure — no code, no branching logic, just “when X happens, do Y.” The pattern's simplicity is also its ceiling: it handles single-condition, single-action automations well but breaks down once real workflows need multiple conditions, conditional branching, retries, or steps that depend on the outcome of a prior step. More sophisticated workflow-automation and AI-agent systems are, in effect, IFTTT logic generalized — many triggers, many conditions, and actions chosen dynamically rather than fixed at configuration time — but the basic trigger-action pair remains the conceptual seed of almost all automation.