Email Processing - Distributor Batch

Often we need to send emails during a process in Dynamics 365 for Finance and Operations. That's quite a standard requirement which often makes you look up some examples of your own or web.

Here is yet another blog post on email sending. 

In this blog post I will provide a few examples of sending email. But first let me introduce you some terms.

• Email template - Templates stored underOrganization administration>Setup>Organization email templates. The underlying tables are SysEmailTable and SysEmailMessageTable.
• Placeholder - a string enclosed within percent (%) symbols. E.g. %placeholder%.
• Email processing table - two tables SysOutgoingEmailTable and SysOutgoingEmailData that store emails to be processed by a batch job. Emails can be found under System administration>Periodic tasks>Email processing>Email sending status.

I assume you have all you email parameters in place and its functional.

Let's send some emails! 

The simplest way is to send it directly. Check out the following example:

var builder = new SysMailerMessageBuilder();

builder.addTo("receiver@test.com");
builder.setFrom("sender@test.com");
                        
builder.setSubject("The greatest email of all time");
builder.setBody("This is the best email ever. I believe in code!");
var message = builder.getMessage();

SysMailerFactory::getNonInteractiveMailer().sendNonInteractive(message);

Tip: addTo method accepts semicolon separated email addresses.

Let's be a little bit more sophisticated and create an email template.

Now let's send an email using the template.

SysEmailTable        sysEmailTable        = SysEmailTable::find('MyTemplate');
SysEmailMessageTable sysEmailMessageTable = SysEmailMessageTable::find(sysEmailTable.EmailId, sysEmailTable.DefaultLanguage);
                
var builder = new SysMailerMessageBuilder();

builder.addTo("receiver@test.com");
builder.setFrom(sysEmailTable.SenderAddr, sysEmailTable.SenderName);
                        
builder.setSubject(sysEmailMessageTable.Subject);
builder.setBody(sysEmailMessageTable.Mail);
var message = builder.getMessage();

SysMailerFactory::getNonInteractiveMailer().sendNonInteractive(message);

What's the template without placeholders, right?

Let's add a couple of placeholders %UserName% and %DateTime% and resolve them. But first we need to add them to the template.

See the code example bellow on how to resolve the placeholders:

SysEmailTable        sysEmailTable        = SysEmailTable::find('MyTemplate');
SysEmailMessageTable sysEmailMessageTable = SysEmailMessageTable::find(sysEmailTable.EmailId, sysEmailTable.DefaultLanguage);
                
str messageBody = sysEmailMessageTable.Mail;
str subject = sysEmailMessageTable.Subject;

Map placeholderMap = new Map(Types::String, Types::String);

placeholderMap.insert("UserName", "Evaldas Landauskas");
placeholderMap.insert("DateTime", strFmt("%1", DateTimeUtil::getSystemDateTime()));

messageBody = SysEmailMessage::stringExpand(messageBody, placeholderMap);
subject     = SysEmailMessage::stringExpand(subject, placeholderMap);
        
var builder = new SysMailerMessageBuilder();

builder.addTo("receiver@test.com");
builder.setFrom(sysEmailTable.SenderAddr, sysEmailTable.SenderName);
                        
builder.setSubject(subject);
builder.setBody(messageBody);
var message = builder.getMessage();

SysMailerFactory::getNonInteractiveMailer().sendNonInteractive(message);

Note: Keys in the map are not enclosed with %, the code inside stringExpand encloses the keys.

OK. Let's try one more thing. Let's say you would like to have a control on emails, like being able to resend in case of some failure.

In this example we will use email processing table instead of directly sending an email. 

SysEmailTable        sysEmailTable        = SysEmailTable::find('MyTemplate');
SysEmailMessageTable sysEmailMessageTable = SysEmailMessageTable::find(sysEmailTable.EmailId, sysEmailTable.DefaultLanguage);
                
str messageBody = sysEmailMessageTable.Mail;
str subject = sysEmailMessageTable.Subject;

Map placeholderMap = new Map(Types::String, Types::String);

placeholderMap.insert("UserName", "Evaldas Landauskas");
placeholderMap.insert("DateTime", strFmt("%1", DateTimeUtil::getSystemDateTime()));

messageBody = SysEmailMessage::stringExpand(messageBody, placeholderMap);
subject     = SysEmailMessage::stringExpand(subject, placeholderMap);
  
SysOutgoingEmailTable   outgoingEmailTable;
SysOutgoingEmailData    outgoingEmailData;
        
outgoingEmailTable.EmailItemId                  = EventInbox::nextEventId();
outgoingEmailTable.TemplateId                   = sysEmailTable.EmailId;
outgoingEmailTable.Sender                       = sysEmailTable.SenderAddr;
outgoingEmailTable.SenderName                   = sysEmailTable.SenderName;
outgoingEmailTable.Recipient                    = 'receiver@test.com';
outgoingEmailTable.Subject                      = subject;
outgoingEmailTable.Message                      = messageBody;
outgoingEmailTable.Priority                     = sysEmailTable.Priority;
outgoingEmailTable.WithRetries                  = true;
outgoingEmailTable.RetryNum                     = 0;
outgoingEmailTable.UserId                       = curuserid();
outgoingEmailTable.Status                       = SysEmailStatus::Unsent;
outgoingEmailTable.LatestStatusChangeDateTime   = DateTimeUtil::getSystemDateTime();       
outgoingEmailTable.insert();

And the result is this.

The emails in this table are processed via batch job
System administration>Periodic tasks>Email processing>Email distributor batch.