Data Transfer API overview

The Data Transfer API manages the transfer of data from one user to another within a domain. One use case of this transfer is to reallocate application data belonging to a user who has left the organization.

Note: Not all Google Workspace applications work with the Data Transfer API. To find the current list of applications and their IDs, read the Transfer parameters reference or call the applications.list() method.

To move the data, first define a DataTransfer resource, then initiate the transfer using the insert() method. For example, the following JSON request body transfers a calendar from the source user to the destination user. You can retrieve the user IDs for each owner by calling the user.get() method of the Directory API and providing their email address or email alias.

{
  "oldOwnerUserId": "SOURCE_USER_ID",
  "newOwnerUserId": "DESTINATION_USER_ID",
  "applicationDataTransfers": [
    {
      "applicationId": "435070579839",
      "applicationTransferParams": [
        {
          "key": "RELEASE_RESOURCES",
          "value": [
            "TRUE"
          ]
        }
      ]
    }
  ]
}

The Data Transfer API includes additional methods and resources to help you construct and administer transfers:

• List applications available for data transfer
• Get application information by application ID
• List transfers by source user, destination user, or status
• Get a transfer request by resource ID