Workday Extend vs. Replenit

Workday Extend unlocks the Workday Build platform, giving developer and IT teams an end-to-end toolkit to build, run, and scale custom agents, apps, and orchestrations. It force multiplies your builders using natural language in preferred agentic IDEs—including Claude Code, Cursor, and Google Antigravity—allowing teams to build in plain language at the speed of thought without sacrificing compliance or control. By combining agentic acceleration with built-in enterprise guardrails, custom agents execute on the Workday Trusted Agent Platform.

Start with the problem. Every retailer runs the same model. They segment customers into groups, build campaigns on a calendar, and send to lists. It was always a workaround. No team and no tool could reason about each customer individually, so retailers averaged. The cost is everywhere: generic timing, missed reorders, blunt promotions, churn caught too late. Their stack does not fix it. The CDP stores data and stops. The CEP sends what it is told. BI reports the past. None of them decide what to do for each customer, so the decision falls back on a human team already at capacity.