SaFi Bank Space : 🟢Epic: Money Withdrawal via Cash-Out (Paynamics) | only in App

This flow refers to a withdrawal of money (cash) from the SaFi main account at the OTC cashier.

Execution Steps:

1. Customer selects over-the-counter withdrawal (cash-out)
2. Customer selects available merchants for cash-out
   1. If customer has an active transaction for that specific merchant, then they are shown the details of the current active transaction, and the customer cannot create a new one
   2. If there are no active transactions, proceed to step 3
3. Customer fills up transaction details (amount) and submits transaction
4. Validate transaction details (min. amount, max amount, active transactions for same merchant)
5. Get customer details
6. Run fraud check
7. Reserve transaction amount by transferring it from customer account to internal SaFi accounts
8. Save transaction
9. Set transaction expiry (configurable, currently 5 days)
10. Send request to paynamics
11. Show customer transaction details with the reference number set to a temp value (pending, etc)
12. Paynamics sends notification with reference number
13. Update transaction details with the reference number
14. Send notification to customer that reference number is available
15. Customer goes to external merchant and completes transaction
16. Paynamics sends notification to callback url
17. Verify notification signature
18. Update transaction
19. If transaction fails, return amount to customer account
20. Notify customer of result