Click the Customers menu and select Enter Sales Receipts.
In the Customer: Job drop-down, click the customer or job.
Add products and services you're selling, quantities, rates, and amounts as needed.
Once done, it will open a payment process window.
In the Customer name field, enter the check writer's name.
In the Account Type drop-down, select the type of checking account the e-check is from. Please take note that this is should be the business, or personal checking account the customer is paying you coming from, not where you plan to put the money.
Enter the Account number and Routing number on the check. This info should be on the check your customer gave you.
Click the Customer authorization section. Then, select how your customer authorized the check.
After you enter the e-check info, select Process Payment.
On the sales receipt, make sure the Process payment checkbox is still selected.