I guess migrating from LogScale to Next-Gen SIEM requires meticulous planning to make sure the uninterrupted log ingestion. It also includes the SOC visibility, and alerting.
You need to start by documenting a phased migration strategy which also include log mapping and SOC alignment along with stakeholder communication. For me, it is always critical to identify dependencies and potential risks early. Just as edge computing in industrial automation give us the real-time visibility and minimizes disruptions during system transitions. Never forget to test thoroughly before full deployment. Last, always prepare a detailed rollback plan in case of issues.