cic-docs/spec/007_eMoney_integration.md

2.4 KiB

Incoming Sarafu

When chama (group accounts) exchange Sarafu each month for National Currency we have to manually send them Mpesa. We would like to automate this.

Outgoing Sarafu

When anyone sends us Mpesa on our paybill we have to manuall send them Sarafu

Solution

Configure - using our own system AfricasTalking API to automatically send Sarafu / Mpesa based on rules:

Incoming Sarafu Rules

  • white list The chama (group accounts only) must only be able to cash out - using the exchange option to an Agent account
  • amount The max cash out is the minimum of (30,000 Sarafu, half their balance, their total amount of outward trade volume to other users (standard transactions)
  • time They can only cash out once per month
  • rate The Sarafu to Mpesa rate should be a config variable set to 1.0 -> a 0% cash out fee. i.e. For 100 Sarafu you get 100 Mpesa. This rate will vary manual based on promotion periods and available Mpesa

Outgoing Sarafu Rules

  • white list Only users sending via paybill receive Sarafu. Non users receive a invitation to join Sarafu sms
  • amount The max sarafu out is 20,000 Sarafu per user
  • time No limit
  • rate The Mpesa to Sarafu rate should be a config variable set to 1.2 -> a 20% cash in bonus. i.e. For 100 Mpesa you get 120 Sarafu. This rate will vary manual based on promotion periods and available Sarafu

Security

  • Balance alerts: The paybill from which Sarafu is sent needs to send a sms and email alert when low
  • Failure alerts: If the API session fails an sms and email alert should be sent
  • Reject on not enough Mpesa balance: If there is not enough Mpesa (on incoming Sarafu) the transaction should be rejected and an email sent to admin along with a SMS to admin and user (Sarafu should not be taken from user). (message should be visible also on mgmt platform txn view and user view and admin view).
  • Reject on not enough Sarafu balance: If there is not enough Sarafu (on incoming Mpesa) the transaction should be rejected and an email sent to admin along with a SMS to admin and user (Mpesa should not be taken from user). (message should be visible also on mgmt platform txn view and user view and admin view).

Variables

  • The account from which Sarafu is sent should be a Agent account
  • The cash-out rules for a chama (minimum and time limit)
  • Alert balance levels
  • Rate: Mpesa to Sarafu
  • Rate: Sarafu to Mpesa