Form Customization Storage and Backup

Form Customization Storage and Backup

When you save a form design, it is serialized in JSON format and stored within a custom list named “OpenousCustomizations”. Some important notes regarding this list:

Manually modifying the structure of this list (that is, removing or changing existing columns) is unsupported. Such modifications can cause corruption in your designer and may invalidate all your customizations. Your Openous forms may stop working without ability of recovery.
The same occurs with changing the data (list items) in this list manually. Please do not modify anything in the OpenousCustomization list using the out of the box SharePoint forms.
It is strongly recommended for backup reasons that you enable version history to this list. See here for a detailed guide on how to do this: https://support.office.com/en-us/article/enable-and-configure-versioning-for-a-list-or-library-1555d642-23ee-446a-990a-bcab618c7a37
You can also take your own backup of a single Openous form customization, by opening your form in the Designer, selecting the root form control of your design, and use the “Copy Definition” button to extract your form’s entire contents to JSON format. You can then save it in a text file in your local disk/OneDrive/SharePoint document library. For more info see Using the Designer