Yahoo ID: ConnectId auto generated puid and storage updates.

dev-docs/modules/userid-submodules/yahoo.md

@@ -27,8 +27,8 @@ Note: Parameters are case-sensitive. ConnectID is the proper name of our product
 | params | Required | Object | Container of all module params. ||
 | params.pixelId | Required | Number |
 The Yahoo-supplied publisher-specific pixel ID. | `"0000"` |
-| params.he | Optional | String | The SHA-256 hashed user email address which has been lowercased prior to hashing. Pass both `he` and `puid` params if present, otherwise pass either of the two that is available. |`"ed8ddbf5a171981db8ef938596ca297d5e3f84bcc280041c5880dba3baf9c1d4"`|
-| params.puid | Optional | String | The publisher supplied user identifier such as a first-party cookie. Pass both `he` and `puid` params if present, otherwise pass either of the two that is available. | `"ab9iibf5a231ii1db8ef911596ca297d5e3f84biii00041c5880dba3baf9c1da"` |
+| params.he | Optional | String | The SHA-256 hashed user email address which has been lowercased prior to hashing.  |`"ed8ddbf5a171981db8ef938596ca297d5e3f84bcc280041c5880dba3baf9c1d4"`|
+| params.puid | Optional | String | A domain-specific user identifier such as a first-party cookie. If not passed, a puid value will be auto-generated and stored in local and / or cookie storage.  | `"ab9iibf5a231ii1db8ef911596ca297d5e3f84biii00041c5880dba3baf9c1da"` |
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 </div>
 
@@ -52,22 +52,48 @@ pbjs.setConfig({
 ```
 
 ```
-// [Sample #2]: Using a hashed email and a publisher-supplied user identifier such as a first-party cookie.
+// [Sample #2]: Neither a hashed email nor a publisher user identifier is passed.
 
 pbjs.setConfig({
     userSync: {
         userIds: [{
             name: "connectId",
             params: {
               pixelId: "0000",
-              he: "ed8ddbf5a171981db8ef938596ca297d5e3f84bcc280041c5880dba3baf9c1d4",
-              puid: "ab9iibf5a231ii1db8ef911596ca297d5e3f84biii00041c580dba3baf9c1da"
             }
         }]
     }
 })
 ```
 
+```
+// [Sample #3]: Using a hashed email and a publisher user identifier such as a first-party cookie.
+
+pbjs.setConfig({
+    userSync: {
+        userIds: [{
+            name: "connectId",
+            params: {
+              pixelId: "0000",
+              he: "ed8ddbf5a171981db8ef938596ca297d5e3f84bcc280041c5880dba3baf9c1d4"
+		 puid: "ab9iibf5a231ii1db8ef911596ca297d5e3f84biii00041c580dba3baf9c1da"
+            }
+        }]
+    }
+})
+```
+
+## Implementation Verification
+Follow the steps below to check that ConnectIDs are being successfully retrieved and included on ad requests.
+1) Open a Prebid-enabled page on the website.
+2) Open the browser console and enter pbjs.getUserIds().
+3) Verify connectId is in the list.
+   - If connectId is not in the list, the correct pixelId parameter is likely not being passed. Verify you are using the correct value provided by Yahoo. Reach out to [connectid.support@yahooinc.com](mailto:connectid.support@yahooinc.com) for assistance.
+4) Verify that ConnectID is successfully included in the ad requests.
+   - Go to the Network tab and search for an ad call event to any of the SSPs that you are using (e.g., “prebid-client”).
+   - Navigate to the Payload tab. Check that yahoo.com is listed as a source in the user.ext.eids array.
+5) Repeat steps 1-4 after an email is provided via login or some other mechanism used to collect user registration on the website.
+
 ## Honoring Privacy Choices
 
 Yahoo ConnectID provides multiple mechanisms for users to manage their privacy choices. Users can manage their choices via [ConnectID Control Portal](http://connectid.yahoo.com), on the [Yahoo Privacy Dashboard](https://legal.yahoo.com/us/en/yahoo/privacy/dashboard/index.html) and [NAI’s Audience Matched Opt Out page](https://optout.networkadvertising.org/optout/email).  No further actions are required by Publishers as Yahoo will ensure that privacy choices selected by users via one of these methods are honored. We will automatically stop generating ConnectIDs for users who have opted-out.
@@ -83,7 +109,7 @@ Please note that the storage related parameters are optional. We recommend that
 | Param under userSync.userIds[] | Scope | Type | Description | Example |
 | --- | --- | --- | --- | --- |
 | storage | Optional | Object | Defines where and for how long the results of the call to get a user ID will be stored. | |
-| storage.type | Optional | String | Defines where the resolved user ID will be stored (either `'cookie'` or `'html5'` local storage).| `'cookie'` |
+| storage.type | Optional | String | Defines where the resolved user ID will be stored (either 'cookie' or 'html5' local storage). | `'cookie'` |
 | storage.name | Optional | String | The name of the cookie or html5 local storage where the resolved user ID will be stored. | `'connectId'` |
 | storage.expires | Optional | Integer | How long (in days) the user ID information will be stored. | `15` |
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