What is mbox3rdPartyId

The mbox3rdPartyId in Adobe Target is your company’s visitor ID, such as the membership ID for your company’s loyalty program.

When a visitor logs in to a company’s site, the company typically creates an ID that is tied to the visitor’s account, loyalty card, membership number, or other applicable identifiers for that company. Learn more

How to use mbox3rdPartyId with the Web SDK

Step 1: Configure the Target Third Party ID Namespace

Configure the Target Third Party ID Namespace in your Datastream, using the ID Namespace you want to use as an mbox 3rd party ID.
Learn more about ID namespaces

Platform UI showing the Target Third Party ID namespace field.

Step 2: Send the mbox3rdpartyId to Target

Send the mbox3rdpartyId to Target in the sendEvent command, using the ID namespace that you configured in Step 1.
Learn more about sending IDs

alloy("sendEvent", {
  xdm: {
    "identityMap": {
      "ID_NAMESPACE": [ // Replace `ID_NAMESPACE` with the namespace you have configured in Step 1.
        {
          "id": "1234",
          "authenticatedState": "authenticated"
        }
      ]
    }
  }
});
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