You can migrate the Project Team data from Jira Cloud to Jira Data Center. The migration process involves creating a backup of the Cloud instance, exporting the data, and then importing the exported data into Jira Data Center.
Backup Creation for Jira Cloud:
Log in as a Jira admin
Navigate to Jira Settings > System
In the IMPORT AND EXPORT section, select Backup manager
Click on Create backup for cloud. Once the backup is complete, click Download cloud backup
Extract the zip archive on your local computer. The entities.xml file is required for the migration
Exporting Data from Jira Cloud
Log in as a Jira admin
Navigate to Jira Settings > Apps > Project Team > Data Export page
Click the Start Export button to begin the export process
Refer to the section Export User Custom Field Data for detailed instructions on exporting data as a JSON file.
Once you have the entities.xml file extracted from the backup archive and the JSON file generated from Export Data you can proceed with the migration application data to Jira Data Center.
Follow these steps to migrate the user custom field definitions and their values from Jira Cloud to Jira Data Center:
Log in to your Jira Data Center instance
Navigate to Administration > Project Team> Import From Cloud page
At Project Team Exported Data From Cloud, choose the JSON file generated on Jira Cloud
At Jira Cloud Exported Entity XML File, choose the entities.xml file extracted from the backup for Cloud archive
The entities.xml file may exceed the default attachment size limit in Jira. To address this:
Navigate to Administration > System
Under the Advanced section, select Attachments
Click Edit Settings and change the attachment size limit to 400MB (404857600 bytes).
After the import, revert to the original attachment size limit.
Click Start Import
Check the Merge data checkbox if you are importing additional new custom fields from a previous import. This will allow the process to import the new custom fields and their associated properties.
For users not found in the local system, a Download button will appear on the page. Click it to download the list of users not found in the system.
By following these instructions, you can successfully migrate your Project Team data from Jira Cloud to Jira Data Center.