When it comes to sending an email in Dynamics 365 / CE / CRM, we specify the entity’s record (with email enabled) in to, cc and bcc field of the email activity entity, and then the email address attribute of that particular record is used.
We can enable email for a custom entity also.
What if we have multiple email address fields specified for a custom entity?
The field which was created first will be used.
Check the below blog post –
https://debajmecrm.com/making-an-entity-enabled-to-send-emails-in-dynamics-365-and-its-existing-email-fields-gotchas/
What about entity like contact and account which have email, email address 2 and email address 3 fields?
If we trying sending an email to the above contact record, which has email address fields as blank programmatically we will get the below error
“Could not find the email address for the recipient of type ‘Contact’ with ID…”
What if we only have the email address 3 field having email id specified and the other 2 email field are blank?
This time our code will run without error, and CRM will pick up the email id specified in the email address 3 field. It will first check for email, then email address 2, and then finally email address 3 field. This happens only in the case of out of the box entity like contact and account.
What if we want to send an email to an email id not specified in the record?
Well in that case AddressUsed attribute of Activity Party can be used as shown below –
On running the above code, we can see the email specified in the addressused field being used
Understand more about activity party entity
https://docs.microsoft.com/en-us/previous-versions/dynamicscrm-2016/developers-guide/gg309626(v=crm.8)?redirectedfrom=MSDN
The helpful post
http://mostlymscrm.blogspot.com/2012/11/sending-emails-to-specific-address.html
Hope it helps..
string ConnectionString = "AuthType = OAuth; " +
"Username = userid;" +
"Password = pwd; " +
"Url = https://mydev.crm.dynamics.com/;" +
"AppId=51f81489-12ee-4a9e-aaae-a2591f45987d;" +
"RedirectUri=app://58145B91-0C36-4500-8554-080854F2AC97;" +
"LoginPrompt=Auto";
CrmServiceClient svc = new CrmServiceClient(ConnectionString);
if (svc.IsReady)
{
// guid of the contact record
Guid contactID = new Guid("0bd90832-bb52-eb11-bb23-000d3a5696d2");
// initializing activity party entity
Entity fromAP = new Entity("activityparty");
Entity toAP = new Entity("activityparty");
fromAP["partyid"] = new EntityReference("systemuser", new Guid("7de293e1-8352-eb11-bb23-000d3a569919"));
toAP["partyid"] = new EntityReference("contact", contactID);
// using the addressused attribute
toAP["addressused"] = "nishant.rana.bliss@gmail.com";
// create email record
Entity email = new Entity("email");
email["from"] = new Entity[] { fromAP };
email["to"] = new Entity[] { toAP };
email["regardingobjectid"] = new EntityReference("contact", contactID);
email["subject"] = "Sample Subject";
email["description"] = "This is sample description.";
Guid emailId = svc.Create(email);
// Send email
SendEmailRequest sendEmailRequest = new SendEmailRequest
{
EmailId = emailId,
IssueSend = true
};
SendEmailResponse sendEmailResponse = (SendEmailResponse)svc.Execute(sendEmailRequest);
}
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Let us call our custom API
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