Accessing the ECID - Web SDK

[RaulFo]

Hi, I am currently migrating from appMeasurement to Web SDK and would like to keep mapping the ECID value to Adobe Analytics (and now to have it set in a custom field of the new created schema).

I could see there are 2 suggested methods for doing this, which one of them is recommended. The recommended method is via Data Prep, but I couldn't manage to find the information about the data selection step previous to the mapping in this functionality. When it comes to define the incoming data, what kind of JSON data structure am I supposse to paste or add? Can you give me an example?

I checked this post where a user had the same issue, but I couldn't find the answer I am looking for. 

[Anil_Umachigi · Accepted solution]

Here's a sample, use it initiate mapping, Also make sure your mapping the ECID in XDM in every sendEvent. Use QueryService or reports to confirm data is flowing thru. 

{
  "data": {
    "eventMergeId": "cce1b53c-571f-4f36-b3c1-153d85be6602",
    "eventType": "view:load",
    "timestamp": "2021-09-30T14:50:09.604Z",
    "web": {
      "webPageDetails": {
        "siteSection": "Product section",
        "server": "example.com",
        "name": "product home",
        "URL": "https://www.example.com"
      },
      "webReferrer": {
        "URL": "https://www.adobe.com/index2.html",
        "type": "external"
      }
    },
    "commerce": {
      "purchase": 1,
      "order": {
        "orderID": "1234"
      }
    },
    "product": [
      {
        "productInfo": {
          "productID": "123"
        }
      },
      {
        "productInfo": {
          "productID": "1234"
        }
      }
    ],
    "reservation": {
      "id": "anc45123xlm",
      "name": "Embassy Suits",
      "SKU": "12345-L",
      "skuVariant": "12345-LG-R",
      "priceTotal": "112.99",
      "currencyCode": "USD",
      "adults": 2,
      "children": 3,
      "productAddMethod": "PDP",
      "_namespace": {
        "test": 1,
        "priceTotal": "112.99",
        "category": "Overnight Stay"
      },
      "freeCancellation": false,
      "cancellationFee": 20,
      "refundable": true
    }
  }
}