by Stéphane Faure.
Hi Eric,
For information, Myddleware tried to create the user into Moodle, and the error displayed was just the message returned by Moodle.
So you tried to create a simple rule but Myddleware can't read any data. I guess it is just because of you reference date in your rule. This date is probably later than the creation date of your client in Magento. You can have more information about this reference date here : http://community.myddleware.com/index.php/tutorial/#parameters
If you change this date to a date before the creation of a customer in Magento, Myddleware will read it.
Then, if your data transfer is stopped to "error_sending" status again. Maybe you will have to change your rule again. But this time, don't delete it, here what you can do : 1) cancel your data transfert, 2) change your rule, 3) change the rule reference date and 4) run the rule again.
About your rule, you will maybe need to set a password, it depends on your settings in Moodle. You can find in attachment a picture of a rule we have set up between Prestashop and Moodle.
Hope it will help.
Stéphane