To create a payment method follow the below steps.
1.Go to Setup > Accounting > Setup Tasks > Accounting Lists > New , then select the Payment Method Type from the drop-down list in the Filters section, and then click New.
2.Enter a name for the payment method in the Name field
3.Select the Type of the Payment Method from the drop-down list
4.Check the Display in Web Site box to use this payment method on your web store.
5.Check the External Checkout box if this payment method requires that your web store customers check out on a third-party website.
6.On the Account subtab, select one of the following:
a).Group with Undeposited Funds. Select this to batch payments prior to deposit into a bank account and entry into a general ledger account.
b).Deposit To. Select this option and then select a bank account from the drop-down list in the Account field.
7.On the Payment Visuals subtab, choose which images show for this payment method on the web store checkout page
8.Click Save