M-Pesa Receiving Accounts
Link as many tills, paybills or bank accounts as you need. Each account has its own API credentials (consumer key + secret) — that is what your website uses to charge customers, and it decides which till the STK push comes from and where the money lands. Each account is activated separately (400 KES / 30 days). If any account is flagged for fraud (20 consecutive failed/cancelled payments) all of your accounts are suspended together until an admin lifts it — appeal from Support.
Link a new account
Bank accounts: the M-Pesa transaction reference is always forced to this account number so your bank credits the right account.