Thirty8 Duplicate Users
A single file WordPress plugin for Mulsite networks which identifies users with duplicate email addresses across the network
Install
No release zip yet. The repository archive installs, but the folder name will carry the branch suffix and updates will not flow:
wp plugin install https://github.com/dmje/thirty8-username-audit/archive/refs/heads/main.zipA WordPress Multisite Network Admin plugin that identifies users sharing the same email address across the network. Read-only — no data is modified.
What it does
Scans the network user table for duplicate email addresses and presents them grouped by email, showing:
- User ID, username, and registration date
- Total posts and pages authored (across all sites)
- Sites the account has access to
- Which account is the oldest (likely the canonical one)
Summary stats at the top show how many duplicate groups exist and how many accounts need consolidating.
Installation
- Copy
thirty8-username-audit.phpinto your/wp-content/plugins/directory - Network Activate it from Network Admin → Plugins
- Access the tool at Network Admin → Duplicate Users
Export
Use the Export as CSV button to download a full report, suitable for sharing with clients or using as a working document during a cleanup exercise.
Notes
- Requires the
manage_network_userscapability - Post/page counts include published content only, summed across all network sites
- On networks with a large number of sites, the page may be slow to load — this is expected