Google Tag Manager (GTM) for Conversion Tracking ​

To implement Server-to-Server (S2S) tracking via Google Tag Manager, please ensure the following prerequisites are met:

1. Unified Domain: All tracking actions must occur on the same website/domain.
2. GTM Installation: A correctly configured GTM container must be installed on your website.
3. Configured Triggers: Trigger points for target events (e.g., Registration, Purchase, or Lead) must be pre-configured in GTM.
4. Cookie Setup: A script must be deployed to capture and store the MyBid Visitor ID in a browser cookie.
5. Postback Script: A secondary script must be configured to retrieve the stored ID and fire the postback to MyBid upon event completion.

How to Set Up Google Tag Manager ​

1. Create a GTM Account ​

• Visit the Google Tag Manager website.
• Click Start for free and sign in with your Google account.
• Create a new account by entering an account name and setting up a container (select "Web" for website tracking).

2. Install GTM on Your Website ​

• After creating your container, GTM will provide two code snippets.
• Snippet 1: Paste this as high in the <head> of your website pages as possible.
• Snippet 2: Paste this immediately following the opening <body> tag.
• Save and publish your container.

3. Verify Installation ​

• Use GTM’s Preview mode to confirm the container is active.
• Click Preview, enter your website URL, and select Connect.
• A debug panel will appear, indicating which tags are firing on your site.

Create a Conversion Goal in MyBid ​

1. Log in to your MyBid advertiser account and navigate to the Goals tab.

2. Click the + Create conversion goal button.

3. The configuration form will appear, requiring the following details:

   • Name: Assign a clear and descriptive name that reflects the specific action (e.g., "Registration" or "Sale").
   • Conversion Type: Select the category that best matches the user's action.
   • Value Type: Define the payout for the conversion. This value is used to calculate your campaign's Revenue and ROI (Return on Investment). You can choose from:
     • No Value: No specific monetary amount will be attributed to the conversion.
     • Fixed: Assign a static amount for every conversion of this type.
     • Dynamic: The conversion value will be passed dynamically through your postback URL.

4. Once configured, click Next.

5. A Postback URL will be generated. Note the goal_id parameter in this URL.

9. Click Copy & done to save your new goal and copy the postback URL for integration.

https://postback.mb-d.com/api/v1/postback?click_id={external_id}&goal_id=186&cost={cost}

Deploy the Cookie Collection Script ​

Create a New Custom HTML Tag ​

1. In your GTM dashboard, navigate to Tags and click New.
2. Name the tag "MyBid - Visitor ID Collection".
3. Under Tag Configuration, select Custom HTML.

Add the Script ​

Paste the following Javascript into the HTML field:

<script>
var value = new URL(location.href).searchParams.get("utm_mbid");
if (value) {
    var date = new Date();
    date.setTime(date.getTime() + (30*24*60*60*1000));
    document.cookie = "mybid_visitor_id=" + (value || "")  + "; expires=" + date.toUTCString() + "; path=/";
}
</script>

Set the Trigger ​

1. Click Triggering and select All Pages.
2. Save and publish your changes.

Deploy the Event Tracking Script ​

Create an Event Tag ​

1. In GTM, create a second Custom HTML Tag.
2. Name it "MyBid - [Event Name] Postback" (e.g., "MyBid - Registration").

Add the Postback Script ​

Paste the following script into the HTML field:

<script>
var visitorId = ('; ' + document.cookie).split('; mybid_visitor_id=').pop().split(';')[0];
if (visitorId) {
    var xhr = new XMLHttpRequest();
    // Replace the placeholders below with your actual data
    var goalId = 'ADD_YOUR_GOAL_ID_HERE';
    var costValue = 'ADD_YOUR_VALUE_HERE';
    xhr.open('GET', 'https://postback.mb-d.com/api/v1/postback?goal_id=' + goalId + '&cost=' + costValue + '&click_id=' + encodeURIComponent(visitorId), true);
    xhr.send();
}
</script>

Configure Variables ​

1. GOAL_ID: Replace ADD_YOUR_GOAL_ID_HERE with your unique goal_id.
2. VALUE: Replace ADD_YOUR_VALUE_HERE with your conversion value (Use the exact number for Fixed value types).

If using No Value, remove the &cost= parameter entirely. The script should look like this:

<script>
var visitorId = ('; ' + document.cookie).split('; mybid_visitor_id=').pop().split(';')[0];
if (visitorId) {
    var xhr = new XMLHttpRequest();
    // Replace the placeholders below with your actual data
    var goalId = 'ADD_YOUR_GOAL_ID_HERE';
    xhr.open('GET', 'https://postback.mb-d.com/api/v1/postback?goal_id=' + goalId + '&click_id=' + encodeURIComponent(visitorId), true);
    xhr.send();
}
</script>

Set the Trigger ​

1. Select the trigger that corresponds to your target action (e.g., a "Thank You" page load or a specific button click).
2. Save and publish the tag.

Campaign Target URL Configuration ​

Ensure your MyBid campaign Target URL correctly passes the click ID using the utm_mbid parameter:

https://your-site.com/?utm_mbid={%click_id%}