...
Install Jira Cloud Migration Assistant on the Data Center instance from which you intend to migrate. For more information, refer to What is Jira Cloud Migration Assistant?
Before migrating, we recommend reading this Atlassian Cloud migration guide to plan your migration.
Check if any setup is needed here with Kiran Muthoju
Migration process
Install the Jira Cloud Migration Assistant on the Jira Data Center instance. Refer to Prerequisites.
Navigate to the Migration Assistant home screen: System > IMPORT AND EXPORT > Migrate to cloud. With the help of the Migration Assistant, migrate data such as projects, users, and groups as required. To migrate, follow the steps outlined on this page: Migrate your data.
The Jira Cloud Migration Assistant offers two migration options. We recommend selecting the Choose what to migrate option, as it provides you with the flexibility to select exactly what you want to migrate.
Once the migration is complete, review your projects on the cloud. Check and set up the users and group permissions as needed. Refer to, After you migrate.
...
To know the difference between the Tableau Connector Pro for Jira app, refer to Tableau Connector Pro for Jira: Data Center and cloud feature comparison.
Problem reporting
If you experience any unexpected problems or behavior changes, create a support request. It helps us to identify and prioritize fixes and improvements.
...