To address business transformations like acquisitions or divesture, teams need to plan for the separation or joining of their cloud workloads from an existing security tenant (Microsoft Entra ID) to a new one. This article describes how to define and implement a cross-tenant workload migration strategy.
https://learn.microsoft.com/en-us/azure/architecture/solution-ideas/articles/migrate-cloud-workloads-across-security-tenants
