You can enable the Replan Instantly feature when you define an orchestration process. It replans the orchestration process immediately after this process completes the orchestration process step, and then displays the revised order data according to the replanning work that it does. It is recommended that you use Replan Instantly only for high priority sales orders, or with sales orders that include a jeopardy threshold of less than one day. For performance reasons, it is recommended that you do not use it with an orchestration process step that is long or complex. If Replan Instantly does not contain a check mark, then Order Management updates the planning data only during the scheduled replanning.
https://docs.oracle.com/en/cloud/saas/supply-chain-management/r13-update17d/faiom/setting-up-orchestration-p