I installed the Rules module on my sites, but it has been in alpha for several years.
When I assign the role "Merchant" to a user, I want him to receive a confirmation email.
Here is my rule:
EVENTS: User update (rules_entity_update: user)
CONDITION: User role (I add merchant which is the machine name of the role)
ACTION: Send an Email
In "Actions" what should I put in "Send to" ?