This endpoint will return the customer preference tags stored in Rejoiner.

You can use either the Rejoiner Customer ID or the customer's email address.

GET /customers/preference_tags/CUSTOMER_ID/
GET /customers/preference_tags/by_email/?email=CUSTOMER_EMAIL
{
  "id": "foobar",
  "email": "[email protected]",
  "preference_tags": ["one-per-week"]
}