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Permutive RTD: document msft bidder custom cohort support #6522

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Permutive RTD: document msft bidder custom cohort support #6522

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1f9adc9
docs: update permutiveRtdProvider.md for msft bidder custom cohorts
AntonioGargaro Apr 9, 2026
3571aac
fix: align markdown table columns to pass MD060 lint rule
AntonioGargaro Apr 9, 2026
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21 changes: 14 additions & 7 deletions dev-docs/modules/permutiveRtdProvider.md
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Expand Up @@ -61,13 +61,17 @@ as well as enabling settings for specific use cases mentioned above (e.g. acbidd

{: .table .table-bordered .table-striped }

| Name | Type | Description | Default |
| ---------------------- | -------------------- | --------------------------------------------------------------------------------------------- | ------------------ |
| name | String | This should always be `permutive` | - |
| waitForIt | Boolean | Should be `true` if there's an `auctionDelay` defined (optional) | `false` |
| params | Object | | - |
| params.acBidders | String[] | An array of bidder codes to share cohorts with in certain versions of Prebid, see below | `[]` |
| params.maxSegs | Integer | Maximum number of cohorts to be included in either the `permutive` or `p_standard` key-value. | `500` |
| Name | Type | Description | Default |
| ---------------------------------------------- | -------------------- | ---------------------------------------------------------------------------------------------- | --------------------------------------------------------------- |
| name | String | This should always be `permutive` | - |
| waitForIt | Boolean | Should be `true` if there's an `auctionDelay` defined (optional) | `false` |
| params | Object | | - |
| params.acBidders | String[] | An array of bidder codes to share cohorts with in certain versions of Prebid, see below | `[]` |
| params.maxSegs | Integer | Maximum number of cohorts to be included in either the `permutive` or `p_standard` key-value. | `500` |
| params.bidders | Object | Per-bidder configuration for custom cohort sources. Keys are bidder codes. | `{ msft: { customCohorts: { source: 'ls', key: '_papns' } } }` |
| params.bidders.\<bidder\>.customCohorts | Object | Custom cohorts source configuration for a specific bidder. | - |
| params.bidders.\<bidder\>.customCohorts.source | String | Storage type to read custom cohorts from. Currently only `'ls'` (localStorage) is supported. | - |
| params.bidders.\<bidder\>.customCohorts.key | String | The localStorage key to read custom cohorts from. | - |

### Context

Expand Down Expand Up @@ -132,11 +136,14 @@ Currently, bidders with known support for custom cohort targeting are:

* Xandr
* Magnite
* Microsoft (msft)

When enabling the respective Activation for a cohort in Permutive, this module will automatically attach that cohort ID to the bid request.
There is no need to enable individual bidders in the module configuration, it will automatically reflect which SSP integrations you have enabled in your Permutive dashboard.
Permutive cohorts will be sent in the permutive key-value.

**Note:** Publishers migrating from the `appnexus` bidder to `msft` should add `msft` to the `acBidders` array (or via the Permutive platform). The module automatically reads custom cohorts for `msft` from the same localStorage key used by `appnexus`.

### _Enabling Advertiser Cohorts_

If you are connecting to an Advertiser seat within Permutive to share Advertiser Cohorts, populate the acbidders config in the Permutive RTD with an array of bidder codes with whom you wish to share Advertiser Cohorts with.
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