CiviCRM Community Forums (archive)

The main "Activity" API includes some under-documented params to manipulate the relationship between the contact and activity. For example, this creates a new activity with various contacts:

https://github.com/civicrm/civihr/blob/e3047e251e60c1df3cfb6c5face390555ff6dc2a/hrabsence/CRM/HRAbsence/Form/AbsenceRequest.php#L454

I believe there are parallel "return" options (eg "return.assignee_contact_id" => 1) for use when fetching activities.

As far as how that ties into emails... I'm not sure which email you're referring to. Could be:
 * If you've configured scheduled reminders for activities, then they'll work the same regardless of how one creates/edits the activity.
 * If you're using CiviCase and its built-in notifications, then I don't know the answer off the top of my head.
 * If you're trying to create activities of type "Email" which are then sent out, then I don't think there's an API, but there's a function to create the activity and send the message at once (CRM_Activity_BAO_Activity::sendEmail). One could probably write a new API (wrapping around that function) without too much difficulty.

I'm able to assign an Activity to a contact using the API, but unfortunately this doesn't result in the system generated e-mail that is sent when assigning an Activity to a contact using the GUI. Is there anyway to do that?

I'd prefer to have the activity in an e-mail than have to use a hook to send a link to the activity, which would require a user login for a mobile device etc.

Brian

By the way, since 4.5 you'll have the ActivityContact API entity, too (CRM-14414), so you'll have a second way to assign activities. (I guess the email won't probably be sent either, anyway).