Interactive Communications allow the agents prepraing ad-hoc correspondences to save partially completed correspondences and retrieve the same to continue working. AEM Forms provides you the Service Provider Interface. The customer is expected to implement this interface to get the Save and Resume functionality.
This article uses MySQL database to store the metadata of the letter instance. The letter data is stored on the file system.
The following video demonstrates the use case:
You will need the following to implement the solution to meet your needs