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BreakingCustomer Links
Breaking changes
  • Breaking: POST /v2/customers/{customer_id}/link returns 409 CUSTOMER_ALREADY_LINKED, with the current link in error.existing_link, when the customer is already linked to a different partner_customer_id. Earlier versions return 200 with the existing link. To change the linked ID, use PATCH /v2/customers/{customer_id}/link. A request with the same partner_customer_id returns 200 on every version.