File Uploads
The three available file-handling modes, and how Required applies to file fields.
Add New Files
New uploads are added while existing files remain. Use this when users should be able to add supporting documents without removing existing files.
Replace Existing Files
When replacement files are uploaded, existing files are deleted and replaced.
Important behaviour: if the user does not upload a replacement file, the existing files remain.
Optional Deletion
The form user can choose whether existing files should be deleted. This is useful where the user needs explicit control over file removal.
Required File Fields
An existing file satisfies a required file field.
If the existing file is marked for deletion and no replacement is uploaded, the field becomes empty and submission is blocked.