We have the option to migrate or merge tenants from our 7.x environment to our 8.x environment. By choosing the migrate option, we are lifting and shifting our data into a new tenant in an 8.x environment.
This video will walk through the steps to put everything in place to begin the vRA migration process by creating a new tenant and setting up our endpoint.
This process is recommended to be completed during a scheduled maintenance window.
How to Enable Remote Connection to vRA Postgres Database from Specific vDIM Hosts for Tenant Migration (81219)
https://kb.vmware.com/s/article/81219