...
This page explains the migration support details for the Reports and Timesheets for Jira app content from server/DC to the cloud.
The JCMAsupport details is not applicable for the app Timesheets for Jira on the server/DC instance.
Pre-requisites
Install the latest version of Reports and Timesheets for Jira appand Jira Cloud Migration Assistant on the server/DC instance.
...
Advanced custom field types
Development summary
Hidden job switch
Jira released version history
Job checkbox
Story points
Global rank
Text field (read only)
Standard custom fields
User Picker (single user): Userkey
User Picker (single user): Username
Back Up Approver(Administration > Timesheet Approvers)
...