Change record status: 
Project: 
Introduced in branch: 
8.x-5.x
Introduced in version: 
8.x-5.0-rc24
Description: 

Submission limits can be set to unique (1) for total submissions and user submissions.

Site builders can now set 'Limit total to one submission per webform/source entity' or 'Limit users to one submission per webform/source entity'. These settings will automatically load the unique total or user submission.

This feature allows a webform to act as a site-wide configuration page (Limit total) or a user profile (Limit user).

Screenshots

Total limit configuration

/admin/structure/webform/manage/WEBFORM_ID/settings/submissions

Total limit configuration

Total user configuration

/admin/structure/webform/manage/WEBFORM_ID/settings/submissions

Total user configuration

Impacts: 
Site builders, administrators, editors
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done