MSCRM Adding Notes With JavaScript

In Dynamics CRM, users can add notes to make comments about certain changes that were made to a record. In some instances, there may be a requirement to automate the creation of notes based on certain field information changes.  

The challenge with notes is that it is not a field on the entity. It is actually a 1:N association which is displayed on the form with an embedded IFRAME. This means that we can’t just populate a field, but instead, we need to call the REST web services on dynamics to request the creation of the note.
To handle this, we can create a simple JavaScript object that handles the web service call (NoteManager) and another object to the handle the test of the creation of the notes (TestNotes):

NoteManager Script:

if (typeof (OGBIT) == "undefined") { OGBIT = {}; }
OGBIT.NoteManager = {
    AddNote: function (params, entitySet, onComplete, onError) {
        var self = OGBIT.NoteManager;
        var serverUrl = self.GetServerUrl();
        var ODataURL = serverUrl + entitySet;
        var json = JSON.stringify(params);      //MUST CONVERT TO JSON STRING

            type: "POST",
            contentType: "application/json; charset=utf-8",
            datatype: "json",
            url: ODataURL,
            data: json,
            beforeSend: function (XMLHttpRequest) {
                XMLHttpRequest.setRequestHeader("Accept", "application/json");
            success: function (data, textStatus, XmlHttpRequest) {
                if (onComplete != null)
            error: function (XmlHttpRequest, textStatus, errorObject) {
                var msg = textStatus;
                try {
                    msg = JSON.parse(XMLHttpRequest.responseText).error.message.value;
                } catch (e) { }

                if (onError != null)
    GetServerUrl: function () {
        var serverUrl = '';
        if (typeof (Xrm) != 'undefined' && Xrm != null) {
            serverUrl = Xrm.Page.context.getServerUrl();
            //test that server name is not coming back instead of the domain name
            //otherwise we get a Cross-Origen (CORS) 400 error           
        if (serverUrl.match(/\/$/)) {
            serverUrl = serverUrl.substring(0, serverUrl.length - 1);

        return serverUrl + "/XRMServices/2011/OrganizationData.svc/";

The above script implements two main methods:

Method Name
This method handles the interaction with the Dynamics CRM web service. It takes the following parameters:

JSON structure that contains the note information
This is the name of the entity where the record needs to be added. For notes, the name is AnotationSet
This is a callback handler
This is a callback handler for errors

Note the following attributes on the request:

The Dynamic CRM web services are RESTFul. For the creation of a new note, we to set the verb to POST.

Since we pass a JSON structure we set the content and data types to JSON

The data parameter contains the JSON data in string format which is generated after calling the stringify function

This method resolves the server URL and current organization name.

TestNotes Script:

OGBIT.TestNotes = {
   AddNotes: function () {
      var self = OGBIT.TestNotes;
      var note = {};
      var ref = {};
      note.NoteText = "This is the content of the notes";
      note.Subject = "Note Unit test";
      ref.LogicalName = Xrm.Page.data.entity.getEntityName();//returns the entity name
      ref.Id = Xrm.Page.data.entity.getId();             //returns the primary id/guid
      note.ObjectId = ref;                              //associate the note to an entity
     OGBIT.NoteManager.AddNote(note, 'AnnotationSet', self.onComplete, self.onError); //AnnotationSet is the notes entity set 
    onError: function (msg) {
    onComplete: function (data) {

The above script creates the following JSON structures:

This is the note object notation. It is created with the following attributes:

This is the content for the note
This is the subject
This is the object associated to the notes. I.E. A note can be associated to an account or other custom entity that support notes.

This is the associated object. It needs the following attributes:

This is the name of the entity
This is the primary id (GUID)

These values can be fetched by using the Xrm client object model. It uses the current context to retrieve the entity information.

After creating the JSON references, the script uses the NoteManager method to post the request to the web services. The callback handlers are called after the web service call has completed. 

I hope these scripts can help you get more understanding of the Dynamics CRM web services and how to interact with them via JavaScript.