// Obtain the current Merchant User Cashier detail (linked Cashier)
        accept.cash().getActiveCashiers()
                .subscribe(merchantCashiers -> {
                    /**
                     * 1. Initialise SDK with merchant credentials
                     * 2. If the Merchant User has Cashier linked
                     *      2.1 Present the Cashier details for PIN capture
                     *      2.2 Capture the Cashiers PIN
                     *      2.3 Validate PIN [sdk.cashManager validatePin:cashierId:completion]
                     *      2.4 If PIN NOT valid disallow application access otherwise
                     * 3. Allow application access
                     **/
                }, throwable -> {
                    // handle error
                });