Adobe Commerce Data Connection – What type of Identity Namespace should I set as Primary Identity?

Question

Hi Community,I am trying to integrate Adobe Commerce with Adobe Experience Platform (AEP) using the Data Connection extension.I have created an event schema and a profile schema.I noticed that I cannot choose ECID (it seems to be default and not selectable).Now I want to know what type of Identity Namespace I should set as the Primary Identity for both schemas.Should I use Email, ECID, or some other namespace?What is the best practice for Adobe Commerce → AEP integration?

Devyendar · Answer

Adobe Commerce connector allows you to capture 3 types of data in AEP.

1) Storefront (client-side via Datastream → Experience Events)

Web SDK sends ECID by default for anonymous traffic.
On login/identify, also send a durable person ID in identityMap (prefer Commerce Customer ID in a custom namespace; fallback Email/Email_LC_SHA256).
Use ECID for device continuity; don’t use ECID as the profile’s primary ID.

2) Back Office (server-side events)

Connector sends events with identityMap that includes email when available and ECID.
For strongest stitching, also include Commerce Customer ID using the same custom namespace you use on the storefront.

3) Profile (customer attributes → Profile dataset)

Send shopper profile attributes on a Profile schema/dataset.
Set primary identity = Commerce Customer ID (custom namespace); if unavailable, use Email_LC_SHA256.
Keep the same person-ID namespace across Storefront + Back Office + Profile so profiles stitch cleanly.

Refer to the detailed documentation here https://experienceleague.adobe.com/en/docs/commerce/data-connection/fundamentals/connect-data#send-customer-profile-data

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