Use Offline Payment System for your eCommerce business which is only developed with the most efficient eCommerce cms named Active eCommerce cms. By this Offline Payment Addon you can get payment from your customers via bank transfer, check payment or any other custom manual payments. For example, a customer first placed an order selecting an offline payment method, then he/she can transfer money to your bank account, deposit a check into your bank account or any other method according to your instruction and submit transaction id, necessary screenshot for verification. You can finally check and approve that order and get paid.

Demo: https://codecanyon.net/item/active-ecommerce-offline-payment-addon/26341323