How to Add GSM360 as a Traffic Source in Voluum (S2S Install & Event Tracking)

How to Configure GSM360 (GeoSpot Media) as a Traffic Source in Voluum with Install & Post-Install S2S Tracking

This guide explains how to:
  1. Configure GeoSpot Media’s GSM360 as a traffic source in Voluum
  2. Apply the recommended tracking macros, and
  3. Set up Server-to-Server (S2S) postbacks for install and post-install event tracking.

Alert
This article assumes familiarity with tracking concepts and is written for advertisers and media buyers focused on performance marketing.

Adding GSM360 as a Traffic Source in Voluum

Voluum provides a pre-built GSM360 traffic source template, which should always be used.

Steps:
  1. Log in to Voluum.
  2. Navigate to Traffic Sources.
  3. Click Create → Traffic Source.
  4. Select GeoSpot Media from the template list.
  5. Click Next, review the prefilled settings, and Save.




The GSM360 traffic source shall now be available for selection while creating a campaign in Voluum. 


Using GSM360 Tracking Macros/Tokens

By default, the standard macros/tokens are part of the traffic source setup as shown below:



However, if you wish to enable further granular reporting and optimization, you can apply additional GSM360 macros in the traffic source setup. You can access the list of tracking macros here -  Guide to Using GSM360 Tracking Macros or Tokens.

Idea
Best Practices
  • Add only the tokens you actively plan to analyze or optimize against.
  • All macros are dynamically replaced at click time by GSM360.


Configure Install S2S Postback (Primary Conversion)

To attribute installs or base conversions back to GSM360, configure the traffic source-level postback.

Parameter Mapping

  • uc=REPLACE_WITH_ADV_ID
    Replace with your GSM360 Advertiser ID (ADV ID)

  • clk_id={externalid}
    Voluum’s click ID token used for attribution

  • event=install
    Defines the base conversion event

  • payout={payout}
    Optional revenue value passed from Voluum

Where to Add This

  1. Open Traffic Sources → GSM360 in Voluum.
  2. Paste the URL into the Traffic Source Postback URL field.
  3. Save the traffic source.

Post-Install Events (Advanced S2S Postbacks)

GSM360 supports tracking post-install events (e.g., registration, purchase, subscription) using the same S2S framework.

Base Postback URL Structure (GSM360)

This structure is reused for all events. Only the event parameter changes. Duplicate the install postback URL and replace the event value with your custom event name/number as derived in the GSM360 post-install events settings.

  1. Example: Event 1 - Registration Event
    https://action.pixels.center/event?uc=REPLACE_WITH_ADV_ID&clk_id={externalid}&event=event1&payout={payout}

  2. Example: Event 2 - Purchase Event
    https://action.pixels.center/event?uc=REPLACE_WITH_ADV_ID&clk_id={externalid}&event=event2&payout={payout}


Implementation Notes

  • {externalid} macro must be consistently used across install and post-install events.
  • Event names should be predefined and standardized in GSM360.
  • The install event should fire before any post-install events.
  • You can track up to 10 distinct post-install events per campaign.


Creating Campaign and Generating Tracking URL in Voluum

In order to get a tracking URL from Voluum, please ensure the following elements exist before launching:

  • Offer
    – Destination URL (with GSM360 macros where required)
  • Lander
    (optional)
  • Campaign
    – Simple or Advanced

Campaign Setup

  1. Go to Campaigns → Create.
  2. Choose Simple or Advanced.
  3. Select GSM360 as the Traffic Source.
  4. Attach your Offer (and Lander, if applicable).
  5. Save the campaign.

Voluum will generate:

  • A Campaign URL (redirect tracking), or
  • A Direct Tracking Script (for direct integrations)


Use this output as the Click URL in your GSM360 campaign.


Final Checklist

  • Add GSM360 using Voluum’s prebuilt traffic source template
  • Apply required GSM360 macros in the traffic source setup
  • Configure install S2S postback at traffic source level
  • Add post-install event postbacks by changing only the event parameter.
  • Create campaign and generate Voluum tracking URL

    • Related Articles

    • S2S Postback URL Setup Guide for Post-Install Events

      Track and Attribute Conversions Beyond Installs for Complete Funnel Visibility We’ve taken conversion tracking to the next level. Beyond the standard install event, GSM360 now supports up to 10 custom conversion events via Server-to-Server (S2S) ...

    • Guide to setting up S2S Postback URL for Tracking Installs & Conversions on GSM360

      How to send in-app/ in-web/ in-ad events to GSM360 platform What is a Postback URL? Postback URL allow you to track the success of your campaign by reporting back an action that the user has completed on your website/app after arriving through an ...

    • Guide to Using GSM360 Tracking Macros or Tokens

      Turn Every Click and Impression Into Actionable Data Overview Macros are dynamic placeholders that supercharge your tracking by pulling real-time data from every click and impression. Whether it’s Device ID, Publisher ID, country code, or other ...