Stash! Registration Flow Overview
This page describes the flow when a user registers their credit card or SEPA account.
To register a credit card (and respect PCI DSS), the mobile SDK must send the credit card information directly to the PSP.
Once the registration with the PSP is completed successfully, the information received from the PSP is sent to the backend, and a payment alias is returned to the 3rd party developer. This payment alias can then be uploaded to the merchant's backend server and later be used for payments.
For the SEPA accounts we don't have restrictions similar to the credit cards. We can send the SEPA account data directly to the Payment backend that will then register the account with the PSP (depending on the PSP) and return a mapped alias.
The alias is then used identically as in case of the Credit Card registration.