#Post-migration

After the domain name of the source tenant is changed to the destination tenant or the UPN prefixes of source email addresses are changed, you can choose one of the following options to migrate the source new or modified data:

If you choose option 1, refer to the following steps to change the mapping domain names of source and destination email addresses:

1. Click Projects in the left pane to access the Projects page, and click the name of a project.

2. On the Project mappings page, select one or multiple mappings for which you want to change domain names.

3. Click Post-migration, and select Change mapping domain to change domain names for the mailboxes.

   In the Change mapping domain panel, the original source domain and destination domain are automatically displayed.

   

4. Enter a new source domain and destination domain for the mailboxes, and click Change to change the domain names.

   After changing the domain names, the original domain names of the source and destination will be updated to the new domain names.