Chris Taylor

Personal welcome is a WordPress/MultiSite/BuddyPress plugin that lists newly registered users, and allows site administrators to send them a personalised welcome message. The welcome messages are based on templates which you can write yourself (as many templates as you like). Once a message is sent that user won’t appear again.
There are four extra management features:
<ul>
<li>The ability to set all users as having been sent a welcome message (an easy way to bulk remove everyone from the list, for example when the plugin is first installed)</li>
<li>The ability to search for a user and send them a welcome message</li>
<li>The ability to set the new user as being spam</li>
<li>The ability to set the new user and all their blogs as spam</li>
</ul>
Of course, the templates don’t have to be just for welcoming people – they could contain FAQs, help information or anything else.
The plugin also makes use of the __() function to allow for easy translation.

Personal Welcome

Personal Welcome is a Wordpress plugin that allows site administrators to create and send personalised welcome messages to new users.

codres

Personal QR message WP plugin.
This plugin allows the seller to create personalized messages for the buyer by a QR code technology. 
The seller can generate text, audio, video messages and send them directly via email or generate a pdf file with a QR code and include it in the order. 
Thanks to this solution, contact with the customer will become more personal and will allow your store to build a good reputation.

Personal QR Message

WordPress plugin to create a personal QR message for the buyer.

Personal Welcome vs Personal QR Message