[SalesForce] INVALID_ID_FIELD, WhatId is not available for sending emails to UserIds

I am trying to run below code in trigger.

List<User> recipients = [SELECT id FROM User WHERE UserRoleId=:operationsRole.Id];
for (User usr:recipients) 
 { 
  Messaging.SingleEmailMessage notification = new Messaging.SingleEmailMessage();
   notification.setTargetObjectId(usr.Id);
   notification.setWhatId(updatedOpp.Id);
   notification.setTemplateId(msgTemplate.id);
   notification.setSaveAsActivity(False);                
   notification.setSenderDisplayName('SF Robot');

List<Messaging.SendEmailResult> postStats =
    Messaging.sendEmail(new Messaging.SingleEmailMessage[] {notification});
for (Messaging.SendEmailResult r:postStats)
{
    System.Debug('************postStat:' + r.isSuccess());
}

}

Best Answer

This error is because the method notification.setTargetObjectId(usr.Id) uses User Id and as per documentation you need to use notification.setWhatId(updatedOpp.Id) only when setTargetObjectId is contact.

Refer documentation below

http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_Messaging_SingleEmailMessage_setWhatId.htm

If you specify a contact for the targetObjectId field, you can specify a whatId as well. This helps to further ensure that merge fields in the template contain the correct data.

Related Solutions

[SalesForce] Messaging.sendEmail() returns an error that the target object Id is null when it was set

This error is because the method msg.setTargetObjectId(BDM.Id ) uses User Id and as per documentation you need to use msg.setWhatId(cas.Id) only when setTargetObjectId is contact.

http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_Messaging_SingleEmailMessage_setWhatId.htm

I faced same issue yesterday

[SalesForce] How to send Mass Email from List View in Contact Or Lead using custom button

Assuming you have this button on a related list/list view, you can use the {!GETRECORDIDS} javascript function to get the list/array of id of the selected records. You can then send this array to your apex class and then query the email field to get the email. YOu can do something like this:

{!REQUIRESCRIPT("/soap/ajax/28.0/connection.js")}
{!REQUIRESCRIPT("/soap/ajax/28.0/apex.js")}
var recordIdArray = {!GETRECORDIDS($ObjectType.Contact)};
console.log('the record Ids are' + recordIdArray);
var retStr = sforce.apex.execute("outbound_Emails", "SendEmailNotification",{conId: recordIdArray});

global class outbound_Emails{
        webservice static void SendEmailNotification (list<id> conId){
            list<contact> conList = [SELECT name,email FROM contact WHERE id IN : conId];
            system.debug('the selected contacts are  ' + conList);
            //you can iterate over this list to get the email and send the mail
        }
}

Best Answer

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[SalesForce] How to send Mass Email from List View in Contact Or Lead using custom button

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