Dear Klaviyo Support Team,
I am reaching out to report an issue I have encountered while subscribing to a list via the Subscribe API /api/profile-subscription-bulk-create-jobs/ (v2023-02-22).
Despite receiving an "Accepted" response with a status code of 202 from the API, I have stopped receiving confirmation emails when attempting to subscribe to a list with double opt-in enabled. While the initial attempts were successful and confirmation emails were received.
However, I have noticed that the Subscribe API is functioning correctly when single opt-in is enabled, and both emails and SMS are being successfully subscribed to the lists.
I kindly request that you investigate this issue and provide a resolution as soon as possible.
Thank you for your attention to this matter.
Best regards,