Allow Multiple Accounts vs Notification Master – Real-Time WordPress Notifications With

Allow multiple user accounts to be created, registered, and updated having the same email address. By default, WordPress only allows a specific email address to be used for a single user account. This plugin removes that restriction. The plugin’s settings page (accessed via Users -> Multiple Accounts or via the Settings link next to the plugin on the Manage Plugins page) provides the ability to allow only certain email addresses the ability to have multiple accounts (such as if you only want admins to have that ability; by default all email addresses can be used more than once). You may also specify a limit to the number of accounts an email address can have (by default there is no limit). The settings page also provides a table listing all user accounts that share email addresses (see screenshot). Compatible with Multisite and BuddyPress as well. Links: Plugin Homepage | Plugin Directory Page | Author Homepage Template Tags The plugin provides three optional template tags for use in your theme templates. Functions Returns a count of the number of users associated with the given email. Returns the users associated with the given email. Returns a boolean indicating if the given email is associated with more than one user account. Arguments $email (string) An email address. Filters The plugin exposes three filters for hooking. Typically, customizations utilizing these hooks would be put into your active theme’s functions.php file, or used by another plugin. c2c_count_multiple_accounts (filter) The ‘c2c_count_multiple_accounts’ hook allows you to use an alternative approach to safely invoke c2c_count_multiple_accounts() in such a way that if the plugin were deactivated or deleted, then your calls to the function won’t cause errors in your site. Arguments: same as for c2c_count_multiple_accounts() Example: Instead of: Do: c2c_get_users_by_email (filter) The ‘c2c_get_users_by_email’ hook allows you to use an alternative approach to safely invoke c2c_get_users_by_email() in such a way that if the plugin were deactivated or deleted, then your calls to the function won’t cause errors in your site. Arguments: same as for c2c_get_users_by_email() Example: Instead of: Do: c2c_has_multiple_accounts (filter) The ‘c2c_has_multiple_accounts’ hook allows you to use an alternative approach to safely invoke c2c_has_multiple_accounts() in such a way that if the plugin were deactivated or deleted, then your calls to the function won’t cause errors in your site. Arguments: same as for c2c_has_multiple_accounts() Example: Instead of: Do:

Transform Your WordPress Site with Professional Notification Management Notification Master is the most comprehensive WordPress notification plugin designed to dramatically increase user engagement and site activity. Whether you’re running a blog, eCommerce store, or community site, our plugin ensures your users never miss important updates through intelligent, automated notifications. Why Choose Notification Master? ✅ 12+ Notification Channels – Reach users everywhere they are ✅ Real-Time Browser Push Notifications – Instant alerts even when users aren’t on your site ✅ Advanced Automation – Set up once, notify forever ✅ Personalized Messages – Dynamic content with smart merge tags ✅ Zero Coding Required – User-friendly interface for all skill levels ✅ Mobile Optimized – Perfect notifications on any device 🎥 Watch Our Complete Setup Tutorial Learn how to maximize your WordPress notifications in under 10 minutes: 🚀 Key Features & Notification Channels Web Push Notifications (Browser Notifications) Send instant browser alerts to subscribers even when they’re not on your website Works on desktop and mobile browsers (Chrome, Firefox, Safari, Edge) Customizable notification appearance with your site branding Smart subscription management with floating buttons Welcome messages for new subscribers Email Notification System Rich HTML email templates with WordPress Classic Editor Multiple recipient management (roles, individual users, custom addresses) Email exclusion options for targeted messaging Test email functionality before sending Background processing for improved performance Social Media & Communication Integrations Discord Notifications – Keep your community updated instantly Slack Integration – Team notifications and updates WhatsApp Notifications – Direct messaging to users Facebook Page Updates – Automatic social media posting Twitter/X Integration – Auto-tweet important updates Instagram Auto-Posting – Visual content automation Advanced Automation & Workflows Zapier Integration – Connect with 5000+ apps and services Make (Integromat) – Advanced workflow automation Webhook Support – Custom integrations and API connections Twilio SMS – Text message notifications Conditional Logic – Smart notification rules 📋 Complete Trigger System – Never Miss Important Events Content Management Triggers New Post Published – Alert subscribers about fresh content Post Updates – Notify about content changes Comment Activity – New comments, approvals, replies Media Management – File uploads, updates, deletions Draft & Review Process – Editorial workflow notifications User Activity Triggers User Registration – Welcome new members Profile Updates – Account changes Login/Logout Activity – Security and engagement tracking User Management – Administrative notifications WordPress System Triggers Plugin Management – Installation, activation, updates Theme Changes – New themes, switches, updates Taxonomy Management – Categories, tags, custom taxonomies Privacy Compliance – GDPR data export/erasure notifications WooCommerce Integration (eCommerce Notifications) Order status changes and updates New customer registrations Product inventory alerts Payment confirmations Shipping notifications 🏷️ Smart Personalization with Merge Tags Create highly personalized notifications using our extensive merge tag system: Content Tags: * {{post.title}} – Dynamic post titles * {{post.content}} – Excerpt or full content * {{post_author.nickname}} – Author information * {{post.permalink}} – Direct links to content User Tags: * {{user.email}} – User email addresses * {{user.display_name}} – Display names * {{user.role}} – User roles and permissions System Tags: * {{general.blogname}} – Your website name * {{general.current_time}} – Current date and time Advanced Custom Fields (ACF) Support: * Custom field values for personalized content * Dynamic product information * User meta data integration 📚 Comprehensive Documentation & Support Access our complete knowledge base for detailed setup guides: Quick Start Guide – Get up and running in minutes Channel Configuration – Detailed integration setup Trigger Reference – Complete trigger documentation Web Push Setup – Browser notification configuration Email Templates – Email design and customization Social Media Integration – Complete social setup guides WooCommerce Notifications – eCommerce-specific triggers API & Webhooks – Advanced integrations