For using WPL payment system please do the followings:

Configuring Payment Gateways

Navigate to WPL->Payments and configure your gateways. You can disable the gateways that you don't like.

Here you can find an explanation of each option.

E-Wallet

Status: For disabling/enabling gateway.

Minimum Balance: Set a minimum balance for E-Wallet system. For example, if you set it to 10, then client balance cannot be less than this amount.

Index: Sort the gateways. If set it to 1, E-Wallet gateway will show as the first gateway in the front-end.

Comment: Your comment will show on checkout pages.

Paypal

Status: For disabling/enabling gateway.

Index: Sort the gateways. If set it to 1, Paypal gateway will show as first gateway in the frontend.

Mode: Set it to live for production website. You can use Sandbox mode if you use a sandbox Paypal account for debugging your website.

Payment Method: WPL paypal supports 2 methods for checkout. one is "Express payment" and another one is "Direct payment" You can choose one of them or both of them if you like. in "Express" method, your clients redirect to paypal website and then can pay the invoice using their paypal account and in "Direct" method, your clients will pay the invoice on your website using their credit cards.

Username: API username of paypal. It needed for "Direct payment".

Password: API password of paypal. It needed for "Direct payment".

Signature: API signature of paypal. It needed for "Direct payment".

Business Account: Your paypal account email. It needed for "Express payment".

Note: For getting Paypal API credentials please check this link: https://developer.paypal.com/docs/classic/api/apiCredentials/

MultiSafePay

Status: For disabling/enabling gateway.

Index: Sort the gateways. If set it to 1, MultiSafePay gateway will show as first gateway in the frontend.

Mode: Set it to live for production website. You can use Sandbox mode if you're building your website and you want to test the payment.
API Key: You can get the API Key from your account on https://www.multisafepay.com/ website.

PayFast

Status: For disabling/enabling gateway.

Index: Sort the gateways. If set it to 1, PayFast gateway will show as first gateway in the frontend.

Mode: Set it to live for production website. You can use Sandbox mode if you're building your website and you want to test the payment.

Marchant ID, Marchant Key: You can get them from your account on https://www.payfast.co.za/ website.
Passphrase: It's an optional security option that PayFast provide to you. If you enabled this option on your account you need to insert your passphrase here.

Bank

Status: For disabling/enabling gateway.

Auto Confirm: Bank receipts should be confirmed first by admin of website, You can enable auto confirm of bank receipts if you don't want to confirm them manually.

Index: Sort the gateways. If set it to 1, Bank gateway will show as first gateway in the frontend.

Comment: Your comment will show on checkout pages.

Configuring Activities

After configuring your gateways you should disable E-Wallet activity if you disabled E-Wallet gateway otherwise you can enable and configure this activity.

Confirm Bank Receipts

For confirming bank receipts you should navigate to WPL->Payments->Transaction and search for "Bank" gateway and then click on tick icon.