Restoring should be more than “repositioning the previous code.” Search behavior is also determined by index versions, configuration, rules, and models. A usable recovery plan treats these components as one coherent release.
Presently store working configurations, index settings, rules and model choices with clear version numbers. Determine what combinations belong together. This prevents old code from coming back while maintaining an incompatible index.
Schedule changes are often harder to reverse than code. Work with individual index versions and a controlled switch where possible. Before removing a previous version, check that it is no longer necessary as a safe relapse.
Make ranking, merchandising and AI changes as independently as possible. A problem in one line does not have to reverse a complete release. Take caches and the time needed before a shutdown has any effect anywhere.
Before live, record which signals directly justify resigning and who makes the decision. Test the procedure periodically and measure the recovery time. A recovery plan that has never been implemented often contains unknown dependencies.
Discuss which measurements, responsibilities and restoration routes fit your online stores and technical environment.