1. The user sees and clicks an advert for the service
2. The user is taken to the landing page
3. The merchant calls the GetSecurityProcess API
4. Infomedia calls Evina to generate a script
5. Evina returns a response to Infomedia
6. Infomedia returns a response to the merchant with the script
7. The merchant shows a MSISDN entry form to the user with the Evina script loaded
8. The user enters their MSISDN and clicks Subscribe
9. The merchant calls the GetCheckoutUrl API
10. Infomedia returns a response with a tokenised URL
11. The merchant redirects the user to the URL
12. The user is redirected initially to Infomedia
13. Infomedia calls Evina's API to perform a fraud check
14. Evina return a fraud result
15. Infomedia redirects the user to Evina
16. The user is redirected to Evina's checkout
17. Evina sends a PIN SMS to the user
18. Evina shows a PIN entry form to the user
19. The user enters the PIN and clicks the Subscribe button
20. Evina sends a confirmation webhook to Infomedia
21. Infomedia sends a Welcome SMS to the user
22. Infomedia sends a Subscribe webhook to the merchant. This is an asynchronous process
23. Infomedia redirects back to the merchant
24. The merchant redirects the customer to the service