How to change the email template content dynamically in Dynamic CRM

Here is an extracted code from a custom workflow where I am trying to send an email using Dynamic CRM SDK and C#.

// Creating a Template Request to get Template content

InstantiateTemplateRequest TemplateRequest = new InstantiateTemplateRequest();

TemplateRequest.TemplateId = this.Template.Get((ActivityContext)activityContext).Id;    // Template ID

TemplateRequest.ObjectId = this.Invoice.Get((ActivityContext)activityContext).Id;       // Entity ID (Invoice Id)

TemplateRequest.ObjectType =  "invoice";    // Entity

// Getting the template Object

Entity entity_EmailTemplate = ((InstantiateTemplateResponse)organizationService.Execute(TemplateRequest)).EntityCollection.Entities.FirstOrDefault();

// Populating Template Object with Email mandatory fields.

entity_EmailTemplate["from"] = new Entity[1]{entity_From};

entity_EmailTemplate["to"] = new Entity[1]{entity_To};

entity_EmailTemplate["subject"] =  this.Subject.Get((ActivityContext)activityContext);

entity_EmailTemplate["regardingobjectid"] = new EntityReference("invoice", this.Invoice.Get((ActivityContext)activityContext).Id);

// Email Body is already in template object

string str = entity_EmailTemplate["description"].ToString();

// Changing the email template content

entity_EmailTemplate["description"] = str.Replace("{!CustomerFirstName},", this.GetContactFirstName(organizationService, this.To.Get((ActivityContext)activityContext).Id) + ",");

// Creating Email Activity

Guid guid = organizationService.Create(entity_EmailTemplate);

// Sending an Email.

SendEmailRequest sendEmailRequest = new SendEmailRequest();

sendEmailRequest.EmailId = guid;                                  

sendEmailRequest.TrackingToken = "";    // Cleaning the Tracking Token

sendEmailRequest.IssueSend = true;

SendEmailResponse sendEmailResponse = (SendEmailResponse)organizationService.Execute((OrganizationRequest)sendEmailRequest);

Here are more points to consider while sending an emailin Dynamic CRM

https://vjcity.blogspot.com/2019/08/how-to-send-email-from-dynamic-crm-in-c.html

Here are some more articles

>> Enhanced Email Communication in Dynamic 365 CRM

>> Configure email synchronization and Mailboxes on Microsoft Dynamics CRM 365 Online

>> How to make Email signature NOT editable in email body in Dynamic CRM

>> Send an email from Dynamic CRM in C#

>> Change the email template content dynamically in Dynamic CRM


>> Error: The email must have at least one recipient before it can be sent.

Regards,

Vipin Jaiswal

vipinjaiswal12@gmail.com