How to know if the emails are converted into payment?

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Mail_id is the ID of the email received by the user using the Sendios system.

What is it used for?

If the payment was made from an email that was sent using Sendios system, this parameter will help our analysts to correctly associate the payment with this email.

How to add mail_id to links in emails?

Contact your Customer Success Manager and they will help you set up the transmission of mail_id in all links that will be used in emails (both marketing and transactional).

What actions are required from your side?

After configuration has been completed, mail_id will be added to the link as a usual utm label:

You can store this mail_id in sessions, cookies or in your database as you see fit.

If payment has been made?

After a successful payment, the mail_id received in the link, which the user used to make the transition to payment, must be transferred to the endpoint Add user payments .