After the sandbox is published, the data fields in the custom data table are available for use in forms and dashboard reports. For more information, go to Design a form and Create a report.
Create a table for managed data if the individual data fields that you want to track meet the following criteria.
After the sandbox is published, the Managed Data table appears on the Data page in the web app. From here, data managers and data architects can import "locked-for-editing" data from external systems. For more information, go to Import managed data.
After the data fields are imported, they are available for use in forms and dashboard reports. For more information, go to Design a form and Create a report.