Pass custom value to in built xApi statements

Are you using. trigger to send?

Hi Phil,

Yes, I am currently using the 'Execute JavaScript' trigger to get value from URL.

// Function to get parameter from URL
function getParameterByName(name, url) {
    if (!url) url = window.location.href;
    name = name.replace(/[\[\]]/g, "\\$&");
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
        results = regex.exec(url);
    if (!results) return null;
    if (!results[2]) return '';
    return decodeURIComponent(results[2].replace(/\+/g, " "));
}

// Retrieve courseId parameter from the URL
var courseId = getParameterByName('courseId');

// Set the courseId value to a Storyline variable
var player = GetPlayer();

player.SetVar("CourseID", courseId);

var courseIDFromVariable = player.GetVar("CourseID");

alert("Course ID: " + courseId);
alert("Course ID from variable: " + courseIDFromVariable);

Using the above code, I was able to successfully capture the courseId from the URL. However, I encountered another issue when trying to set the articulate variable, which is that it is always returning null, even when I use a hardcoded value like this.
player.SetVar("CourseID", 15);
player.GetVar("CourseID"); this always returned a null value.

This is where I am currently stuck. I don't even know if this is the right way. I would like to know if I am able to fix the setting variable, Can I only set this value to custom xApi statements, not to the in-built xApi statements? Sorry for any confusion; I am very new to the articulate. Any help would be much appreciated.

are you using the correct variable name and type?

Omg, Thank you so much for your help. I didn't know I had to manually add variables through articulate. I thought the SetVar() method would create a new variable for me. Adding the variable to my project resolved the null value issue.
Also, do you know how I can set this variable for in-built xApi statements? I know we can set variables for custom xApi statements. Any advice would be much appreciated. Thank you again.

here is a some tutorials for xAPi on youtube

https://www.youtube.com/watch?v=v-U7NUnqFZY

https://www.youtube.com/watch?v=8122oia95WI

here more infos from articulate for the includes xAPI function in storyline

https://access.articulate.com/support/article/Storyline-360-Custom-xAPI-Statements

Hi, 

Thanks for taking your time to help me with this. As for the tutorials you suggested, yes, I reviewed all of them and was able to send a custom xApi statement by setting my custom variable, which I got from the URL.

Also, this custom xApi statement was stored in LRS without any issues.

As you can see, the value of my variable is stored as "CourseID_112996" in the Interacted xApi Statement. My concern is how I can set this variable to Articulated-generated xApi statements. For example, both "Jimmy experienced Intro" and "Jimmy attempted MathGame" are created within the articulate tool. Not by me. Basically, I am creating a course in an LMS. Articulate content is only a part of that course. Therefore, I like to store my course ID in xApi statements when users interact with the course. As for the custom Xapi statements, I am able to store my course ID like your tutorials suggested. But I also want to set courseId to in-built xApi statements as well, so I can query the user progress with courseId. That's what I am trying to achieve. With your help, I was able to add custom variables to my custom xApi statements. But my main concern is how I can set my variable to xApi statements created with articulate.