Forum Discussion
externalID
hello
Hi Braze Community,
I'm currently learning how to set up Braze for our brand and have a question:
Our CRM uses a customer_loyalty_id to identify loyalty members. Should we map this directly to Braze's external_id, or is it better to keep the app-generated user ID as the external_id and store the customer_loyalty_id as a custom attribute?
I appreciate any insights or experiences you can share on this topic!
Best regards,
Hernando
Hello HernandoRen Do you have any customers in CRM that are not loyalty members and you want them to ingest in Braze?
I would use a primary user identifier (something unique to identify a customer liek customer_id) to populate external_id. If you are not sure then you can use user_alias to add secondary identifiers
You can read more about these here: https://www.braze.com/docs/user_guide/data/user_data_collection/best_practices/#step-1-check-if-the-user-exists
https://www.braze.com/docs/api/objects_filters/aliases_to_identify
