Email for profile has to be unique

Question

We have a project, to upload our subscriptions into Klaviyo. One subscription will be one profile in Klaviyo. And one customer (with email, address, phone) may have multiple subscriptions, and one subscription has an unique ID (number). We are planning to use this unique ID (plus a prefix) as external Id for Klaviyo profile.

Initially, I tried to upload some subscriptions, and it was good. Multiple subscriptions for one customer (one email) could be uploaded to Klaviyo, and created multiple profiles.

But later, it doesn’t work.

When I googled, it says on Klaviyo, email has to be unique. One email can only have one profile.

I am confused.

What’s the fact?

whereisjad · Accepted Answer

​@sunyajunassuming that you do a CSV import according to rules heredid you designatesubscription’sunique ID as $id in the CSV file?keep in mind that its distinct from Klaviyo’s unique identifieronce imported. If you open Information section for a profile like below:Unique ID is the Klaviyo identifier that you cannotedit.External ID is what you set in the $id column.Hope this explanation makes sense.

KeviSunshine · Answer

Hi Sunyajun,I’m not sure why it worked the first time (it shouldn’t have) becauseKlaviyo has a strict rule about one email being unique to one profile. You cannot have multiple profiles with the same email.I think you will need to rethink your externalId strategy here as you’ll need to follow Klaviyo’s rule about uniqueemails and profiles.Perhaps use the email as the unique identifier rather than an external ID?Cheers,Kevin.

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