Can anybody tell the workflow of "Subscribe to our newsletter" checkbox at checkout page in Drupal commerce. Currently i need to sign-up a user for newsletter who has this checkbox checked after completing a checkout. But don't know how to make newsletter API call after getting checkbox checked for an order.
Even don't know the work flow of this checkbox. Please help if anybody have a clear idea about this.
Which of available newsletter module you using? , you can install this module Commerce simplenews checkout if you decide to use simplenews newsletter.