Create free-form key-values in Google Ad Manager

Media Owners
Last Updated: February 12, 2026

Key-values are used in line item targeting and a key value is created for each agreed price level, in cents, and for each deal. The targeting key is then used to activate line items for each slot.

If you are managing key-value pairs, make sure that you create them in the format specified below. This allows Index to generate targeting keys from the bid response.

Before you begin: Make sure that you have added Index as a verified advertiser. For details, see Add verified advertisers and brands to your list of companies in the Google Ad Manager help.

  1. Sign in to Google Ad Manager.

  2. Add the AOM, APM, APMID, and ix_test free-form key-values using the information in the following table. For instructions on how to add free-from key values, see Target key-values in the Google Ad Manager help.
    Target nameDescriptionValue format

    AOM

    Targeted by open market line items.

    <width>x<height>_<pricelevel>

    Example: 300x250_221

    APM

    Targeted by private market line items that compete by price.

    <width>x<height>_<pricelevel>

    Example: 300x50_223

    APMID

    Targeted by private market line items that compete by priority.

    <width>x<height>_<dealID>

    Example: 300x50_deal1

Here's an example response sent to the browser:

                        {
  "targeting": {
    "AOM": "300x250_221",
    "APM": "300x50_223",
    "APMID": "300x50_deal1",
    "300x250_unk2": "au-B_pcid-2AFDD0073900_s-2B0E_t-5914BC1A_cp-20.01",
    "300x50_unk2": "au-C_pcid-3BAEE1194011_s-2B0E_t-5914BC1A_cp-4.33",
    "asPath": "https://a100.casalemedia.com/pcreative"
  }
}
                    

After you finish: Set up line items in Google Ad Manager.