To satisfy a requirement for near real-time REST updates with limited development resources, the architect should utilize Flow Builder. Flow Builder is Salesforce's primary low-code tool for automating complex business logic and outbound integrations.

The Remote Process Invocation—Fire and Forget pattern is the most efficient way to signal an external system (or middleware) that a record was created without blocking the user. Using a Record-Triggered Flow on the Order object, the architect can configure an Action (such as an External Service or a simple HTTP Callout) to send the order data to the middleware's REST endpoint.

Option A is slightly incorrect because creating a platform event is just one step in an event-driven flow; the "Fire and Forget" pattern more accurately describes the end-to-end intent. Option B (Change Data Capture) is a powerful tool, but it is considered a "pro-code" or high-configuration so12lution on the middleware side, requiring the middleware to manage Replay IDs and Bayeux subscriptions. Option C leverages the native strengths of Flow to fulfill the requirement declaratively, 13allowing the team to14 deliver a functional integration without writing Apex code while meeting the near-real-time performance expectations of the ERP.