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Publisher Setup with Hosted Sales Agent

Complete guide to setting up a publisher as a Scope3 agentic destination using Prebid
1

Prerequisites

Before starting this integration, ensure you have:
  • Google Ad Manager (GAM) account with administrative access
  • Scope3 account with the Activation package enabled
  • Prebid.js 8.50.0+ or Prebid Server (Go version) implementation
  • Access to modify your Prebid configuration files
2

Scope3 RTD Module Setup

Set up Scope3 RTD module
3

Google Ad Manager Setup

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Create Scope3 Advertiser

  1. Navigate to Inventory → Advertisers in GAM
  2. Click New advertiser
  3. Set up the advertiser:
    • Name: “Scope3”
    • Type: “Advertiser”
    • Click Save

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Set Up Key-Value Targeting

  1. Navigate to Inventory → Key-values in GAM
  2. Create three new key-values using the names you chose in the AXE integration:

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Inclusion Segments Key (axei)

  • Key name: axei (or your custom name)
  • Values: Dynamic (will be populated by Scope3)
  • Value type: Freeform

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Exclusion Segments Key (axex)

  • Key name: axex (or your custom name)
  • Values: Dynamic (will be populated by Scope3)
  • Value type: Freeform

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Macros Key (axem)

  • Key name: axem (or your custom name)
  • Values: Dynamic (will be populated by Scope3)
  • Value type: Freeform
4

Scope3 Account Configuration

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Connect GAM Account

  1. Navigate to Integrations → Publishers
  2. Click Add Integration
  3. Select Google Ad Manager
  4. Complete OAuth authorization process
  5. Grant necessary permissions when prompted

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Configure GAM integration

Once you connect GAM, Scope3 will load the advertisers from the GAM API.
  • Select the Scope3 advertiser you selected from the list
You will now see the URL for your sales agent! It will show up as “Not authorized” until you do the next step (Authorize your sales agent).See the instructions on the GAM integration page to set up a custom domain (for instance, ad-sales.your-domain.com) and to configure the landing page.
5

Authorize the sales agent

Much like ads.txt for the programmatic world, agentic buyers look at adgents.json to see if a sales agent is authorized for a particular publisher.(todo: add snippet once AdCP spec is finalized)You should now see your sales agent show up as “Authorized”.

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Next Steps

The technical integration is now complete! The next step is to set up your first media product.

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Support

For technical support and questions:
  • Scope3 Technical Account Manager: Primary contact for configuration
  • Prebid Documentation: prebid.org
  • Community Support: Prebid Slack channel